build(deps): bump the ci group across 1 directory with 4 updates

Bumps the ci group with 4 updates in the / directory: [korthout/backport-action](https://github.com/korthout/backport-action), [google-github-actions/auth](https://github.com/google-github-actions/auth), [github/codeql-action](https://github.com/github/codeql-action) and [anchore/sbom-action](https://github.com/anchore/sbom-action).


Updates `korthout/backport-action` from 3.0.2 to 3.1.0
- [Release notes](https://github.com/korthout/backport-action/releases)
- [Commits](https://github.com/korthout/backport-action/compare/bd410d37cdcae80be6d969823ff5a225fe5c833f...be567af183754f6a5d831ae90f648954763f17f5)

Updates `google-github-actions/auth` from 2.1.4 to 2.1.5
- [Release notes](https://github.com/google-github-actions/auth/releases)
- [Changelog](https://github.com/google-github-actions/auth/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google-github-actions/auth/compare/f112390a2df9932162083945e46d439060d66ec2...62cf5bd3e4211a0a0b51f2c6d6a37129d828611d)

Updates `github/codeql-action` from 3.26.1 to 3.26.4
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/29d86d22a34ea372b1bbf3b2dced2e25ca6b3384...f0f3afee809481da311ca3a6ff1ff51d81dbeb24)

Updates `anchore/sbom-action` from 0.17.1 to 0.17.2
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](https://github.com/anchore/sbom-action/compare/ab9d16d4b419c9d1a02df5213fa0ebe965ca5a57...61119d458adab75f756bc0b9e4bde25725f86a7a)

---
updated-dependencies:
- dependency-name: korthout/backport-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: google-github-actions/auth
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: ci
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
  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/e2e-gcp.yaml

@@ -46,7 +46,7 @@ jobs:
         env:
           SOPS_VER: 3.7.1
       - name: Authenticate to Google Cloud
-        uses: google-github-actions/auth@f112390a2df9932162083945e46d439060d66ec2 # v2.1.4
+        uses: google-github-actions/auth@62cf5bd3e4211a0a0b51f2c6d6a37129d828611d # v2.1.5
         id: 'auth'
         with:
           credentials_json: '${{ secrets.FLUX2_E2E_GOOGLE_CREDENTIALS }}'