chore(deps): bump mariadb docker tag to v11

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mariadb	service	major	10.11 -> 11.6

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Configuration

📅 Schedule: Branch creation - "* 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 becomes conflicted, 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.

[ChristophWurst]

https://docs.nextcloud.com/server/30/admin_manual/installation/system_requirements.html#server FYI

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.33%. Comparing base (430505e) to head (7b68582).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #4142   +/-   ##
=========================================
  Coverage     66.33%   66.33%           
  Complexity      263      263           
=========================================
  Files            25       25           
  Lines           799      799           
=========================================
  Hits            530      530           
  Misses          269      269           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.