Bump Chizkiyahu/delete-untagged-ghcr-action from 5 to 6

Bumps [Chizkiyahu/delete-untagged-ghcr-action](https://github.com/chizkiyahu/delete-untagged-ghcr-action) from 5 to 6.
- [Release notes](https://github.com/chizkiyahu/delete-untagged-ghcr-action/releases)
- [Commits](chizkiyahu/delete-untagged-ghcr-action@v5...v6)

---
updated-dependencies:
- dependency-name: Chizkiyahu/delete-untagged-ghcr-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/housekeeping.yml

@@ -18,7 +18,7 @@ jobs:
                     password: ${{ secrets.PAT_TOKEN }}
             -
                 name: Delete all containers from repository without tags
-                uses: Chizkiyahu/delete-untagged-ghcr-action@v5
+                uses: Chizkiyahu/delete-untagged-ghcr-action@v6
                 with:
                     token: ${{ secrets.PAT_TOKEN }}
                     repository_owner: ${{ github.repository_owner }}