chore(deps): update keycloak/keycloak docker tag to v26.2.5

[renovate]

This PR contains the following updates:

Package	Update	Change	OpenSSF
keycloak/keycloak	minor	26.1.5 → 26.2.5

---

Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM, only on Monday ( * 0-3 * * 1 ) in timezone Europe/Berlin, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[coderabbitai]

Important

Review skipped

Bot user detected.

To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}