feat: update release management

[Morgy93]

This pull request updates the release automation workflows to streamline publishing and align with best practices for Node projects. The changes introduce a new workflow for automated releases using Release Please and simplify the existing publish workflow by removing manual changelog extraction and release creation steps.

Release automation improvements:

• Added a new .github/workflows/release-please.yml workflow to automate release PR creation and versioning using the Release Please GitHub Action, targeting the main branch.
• Updated .github/workflows/release.yml to trigger on published releases instead of tags, renamed the workflow to "Publish", and renamed the job to publish for clarity.

Workflow simplification and best practices:

• Changed the Node.js setup step to use quoted values for node-version and cache for consistency.
• Removed manual steps for extracting the version and changelog, and for creating GitHub releases; replaced with a step that uploads the VSIX artifact to the release using ncipollo/release-action, with simplified options.

Documentation update:

• Updated CHANGELOG.md to reference the new release process and removed references to previous changelog and versioning tools.

[Copilot]

Pull request overview

This pull request modernizes the release automation workflow by introducing Release Please for automated release management and simplifying the publishing process. The changes replace manual changelog extraction and release creation with automated tooling while maintaining the core publishing functionality to the VS Code Marketplace.

Changes:

• Added Release Please workflow for automated release PR creation and versioning
• Updated the publish workflow to trigger on release events instead of git tags
• Modified CHANGELOG.md to reference the new release tooling approach

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 3 comments.

File	Description
.github/workflows/release-please.yml	New workflow that automates release PR creation using Release Please action
.github/workflows/release.yml	Updated to trigger on published releases, removed manual changelog/release steps, added simplified VSIX upload
CHANGELOG.md	Updated changelog header to reference commit-and-tag-version tooling
package-lock.json	Version bumped from 0.4.2 to 0.5.0 and vscode engine updated to ^1.108.0

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.