chore(deps): bump actions/checkout from 4 to 6

.github/workflows/auto-tag-enhanced.yml

@@ -180,7 +180,7 @@ jobs:
       artifacts-count: ${{ steps.upload-artifacts.outputs.count }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -369,7 +369,7 @@ jobs:
       image-size: ${{ steps.build-push.outputs.image-size }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🔧 Setup Java & Maven
         uses: ./.github/actions/setup-java-maven

.github/workflows/ci-security.yml

@@ -168,7 +168,7 @@ jobs:
       security-events: write
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔍 Initialize CodeQL
         uses: github/codeql-action/init@v4
@@ -209,7 +209,7 @@ jobs:
       high-count: ${{ steps.scan.outputs.high }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: ☕ Set up JDK ${{ needs.validate-inputs.outputs.java-version }}
         uses: actions/setup-java@v5
@@ -286,7 +286,7 @@ jobs:
       high-count: ${{ steps.scan.outputs.high }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔍 Run Trivy vulnerability scanner
         id: scan
@@ -341,7 +341,7 @@ jobs:
       high-count: ${{ steps.scan.outputs.high }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: ☕ Set up JDK ${{ needs.validate-inputs.outputs.java-version }}
         uses: actions/setup-java@v5

.github/workflows/container-scan.yml

@@ -85,7 +85,7 @@ jobs:
       status: ${{ steps.result.outputs.status }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔑 Login to Container Registry
         if: secrets.REGISTRY_USERNAME != '' && secrets.REGISTRY_PASSWORD != ''

.github/workflows/dependabot-auto-merge-enhanced.yml

@@ -169,7 +169,7 @@ jobs:
       merge-reason: ${{ steps.process-pr.outputs.reason }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🔍 Get Dependabot metadata
         id: dependabot-metadata

.github/workflows/java-ci-secure.yml

@@ -140,7 +140,7 @@ jobs:
       build-status: ${{ steps.test-summary.outputs.status }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: ☕ Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@de5a937a1dc73fbc1a67d7d1aa4bebc1082f3190 # v4.2.1

.github/workflows/java-ci-universal.yml

@@ -187,7 +187,7 @@ jobs:
       build-tool-used: ${{ needs.validate-inputs.outputs.build-tool-validated }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: ☕ Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v5

.github/workflows/java-ci.yml

@@ -103,7 +103,7 @@ jobs:
       build-status: ${{ steps.build-status.outputs.status }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔍 Auto-detect build tool
         id: detect

.github/workflows/k8s-deploy.yml

@@ -99,7 +99,7 @@ jobs:
       rollout-status: ${{ steps.rollout.outputs.status }}
     steps:
       - name: 📥 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔧 Setup kubectl
         uses: azure/setup-kubectl@v4

.github/workflows/pre-merge-validators.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🛠️ Install YAML tooling
         run: |
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🔐 Scan for potential hardcoded secrets
         run: |

.github/workflows/release-workflows.yml

@@ -43,7 +43,7 @@ jobs:
       next-version: ${{ steps.version.outputs.next }}
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 0
 
@@ -132,7 +132,7 @@ jobs:
       release-notes: ${{ steps.release-notes.outputs.content }}
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 0
 
@@ -314,7 +314,7 @@ jobs:
       tag-name: ${{ steps.create-release.outputs.tag_name }}
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
 
@@ -382,7 +382,7 @@ jobs:
     if: needs.create-release.outputs.tag-name != ''
     steps:
       - name: 📥 Checkout at tag
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           ref: ${{ needs.create-release.outputs.tag-name }}
 

.github/workflows/test-workflows.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🛠️ Install YAML tooling
         run: |
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🔍 Check for hardcoded secrets
         run: |
@@ -97,7 +97,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🔧 Test Java & Maven Setup
         uses: ./.github/actions/setup-java-maven
@@ -116,7 +116,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 📥 Checkout
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: 🔍 Check workflow files exist
         run: |