Bump postcss from 8.3.5 to 8.5.18

Bumps [postcss](https://github.com/postcss/postcss) from 8.3.5 to 8.5.18.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.3.5...8.5.18)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.18
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/create-release.yml

@@ -47,7 +47,7 @@ jobs:
           gitops-file: "environments/staging/doc.kerberos.io/deployment.yaml"
           gitops-pr-branch: "release-kerberos-documentation-${{ github.event.inputs.tag || github.ref_name }}"
           gitops-key: ".spec.template.spec.containers[0].image"
-          gitops-value: "uugai/kerberos-documentation:${{ github.event.inputs.tag || github.ref_name }}"
+          gitops-value: "core.harbor.uug.ai/images/uugai/kerberos-documentation:${{ github.event.inputs.tag || github.ref_name }}"
           commit-email: "gitops@uug.ai"
           commit-name: "GitOps - UUG.AI"
           commit-message: "A new release for Kerberos documentation  - ${{ github.event.inputs.tag || github.ref_name }}"