chore(deps): update ghcr.io/cloudnative-pg/postgresql docker tag to v18.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/cloudnative-pg/postgresql	final	minor	18.0-standard-bookworm -> 18.1-standard-bookworm

---

Warning

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

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ 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.

[gitstream-cm]

🚨 gitStream Monthly Automation Limit Reached 🚨

Your organization has exceeded the number of pull requests allowed for automation with gitStream.
Monthly PRs automated: 250/250

To continue automating your PR workflows and unlock additional features, please contact LinearB.

[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.}