build(deps): bump the ci group with 4 updates

Bumps the ci group with 4 updates: [korthout/backport-action](https://github.com/korthout/backport-action), [actions/setup-go](https://github.com/actions/setup-go), [google-github-actions/setup-gcloud](https://github.com/google-github-actions/setup-gcloud) and [anchore/sbom-action](https://github.com/anchore/sbom-action).


Updates `korthout/backport-action` from 2.1.1 to 2.2.0
- [Release notes](https://github.com/korthout/backport-action/releases)
- [Commits](https://github.com/korthout/backport-action/compare/08bafb375e6e9a9a2b53a744b987e5d81a133191...b982d297e31f500652b2246cf26714796312bd23)

Updates `actions/setup-go` from 4.1.0 to 5.0.0
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/93397bea11091df50f3d7e59dc26a7711a8bcfbe...0c52d547c9bc32b1aa3301fd7a9cb496313a4491)

Updates `google-github-actions/setup-gcloud` from 1.1.1 to 2.0.0
- [Release notes](https://github.com/google-github-actions/setup-gcloud/releases)
- [Changelog](https://github.com/google-github-actions/setup-gcloud/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google-github-actions/setup-gcloud/compare/e30db14379863a8c79331b04a9969f4c1e225e0b...825196879a077b7efa50db2e88409f44de4635c2)

Updates `anchore/sbom-action` from 0.15.0 to 0.15.1
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](https://github.com/anchore/sbom-action/compare/fd74a6fb98a204a1ad35bbfae0122c1a302ff88b...5ecf649a417b8ae17dc8383dc32d46c03f2312df)

---
updated-dependencies:
- dependency-name: korthout/backport-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci
- dependency-name: google-github-actions/setup-gcloud
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci
- dependency-name: anchore/sbom-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: ci
...

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

.github/workflows/backport.yaml

@@ -17,7 +17,7 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Create backport PRs
-        uses: korthout/backport-action@08bafb375e6e9a9a2b53a744b987e5d81a133191 # v2.1.1
+        uses: korthout/backport-action@b982d297e31f500652b2246cf26714796312bd23 # v2.2.0
         # xref: https://github.com/korthout/backport-action#inputs
         with:
           # Use token to allow workflows to be triggered for the created PR