github-actions: bump actions/delete-package-versions from 4 to 5

Bumps [actions/delete-package-versions](https://github.com/actions/delete-package-versions) from 4 to 5.
- [Release notes](https://github.com/actions/delete-package-versions/releases)
- [Commits](actions/delete-package-versions@v4...v5)

---
updated-dependencies:
- dependency-name: actions/delete-package-versions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/delete_images.yml

@@ -12,7 +12,7 @@ jobs:
     permissions:
       packages: write
     steps:
-      - uses: actions/delete-package-versions@v4
+      - uses: actions/delete-package-versions@v5
         with:
           package-name: 'sosialhjelp-soknad/sosialhjelp-soknad'
           package-type: 'container'