build(deps): bump the ci group with 5 updates

Bumps the ci group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [korthout/backport-action](https://github.com/korthout/backport-action) | `2.3.0` | `2.4.1` |
| [google-github-actions/auth](https://github.com/google-github-actions/auth) | `2.0.1` | `2.1.0` |
| [google-github-actions/setup-gcloud](https://github.com/google-github-actions/setup-gcloud) | `2.0.1` | `2.1.0` |
| [actions/upload-artifact](https://github.com/actions/upload-artifact) | `4.2.0` | `4.3.0` |
| [anchore/sbom-action](https://github.com/anchore/sbom-action) | `0.15.4` | `0.15.5` |


Updates `korthout/backport-action` from 2.3.0 to 2.4.1
- [Release notes](https://github.com/korthout/backport-action/releases)
- [Commits](addffea45a...e8161d6a0d)

Updates `google-github-actions/auth` from 2.0.1 to 2.1.0
- [Release notes](https://github.com/google-github-actions/auth/releases)
- [Changelog](https://github.com/google-github-actions/auth/blob/main/CHANGELOG.md)
- [Commits](f6de81663f...5a50e58116)

Updates `google-github-actions/setup-gcloud` from 2.0.1 to 2.1.0
- [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](5a5f7b85fc...98ddc00a17)

Updates `actions/upload-artifact` from 4.2.0 to 4.3.0
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](694cdabd8b...26f96dfa69)

Updates `anchore/sbom-action` from 0.15.4 to 0.15.5
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](41f7a6c033...24b0d52385)

---
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-minor
  dependency-group: ci
- dependency-name: google-github-actions/setup-gcloud
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-minor
  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@addffea45a2f0b5682f1d5ba0506f45bc18bf174 # v2.3.0
+        uses: korthout/backport-action@e8161d6a0dbfa2651b7daa76cbb75bc7c925bbf3 # v2.4.1
         # xref: https://github.com/korthout/backport-action#inputs
         with:
           # Use token to allow workflows to be triggered for the created PR

.github/workflows/e2e-gcp.yaml

@@ -46,13 +46,13 @@ jobs:
         env:
           SOPS_VER: 3.7.1
       - name: Authenticate to Google Cloud
-        uses: google-github-actions/auth@f6de81663f7788d05bd15bcce18f0e57f23f0846 # v2.0.1
+        uses: google-github-actions/auth@5a50e581162a13f4baa8916d01180d2acbc04363 # v2.1.0
         id: 'auth'
         with:
           credentials_json: '${{ secrets.FLUX2_E2E_GOOGLE_CREDENTIALS }}'
           token_format: 'access_token'
       - name: Setup gcloud
-        uses: google-github-actions/setup-gcloud@5a5f7b85fca43e76e53463acaa9d408a03c98d3a # v2.0.1
+        uses: google-github-actions/setup-gcloud@98ddc00a17442e89a24bbf282954a3b65ce6d200 # v2.1.0
       - name: Setup QEMU
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
       - name: Setup Docker Buildx

.github/workflows/ossf.yaml

@@ -28,7 +28,7 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           publish_results: true
       - name: Upload artifact
-        uses: actions/upload-artifact@694cdabd8bdb0f10b2cea11669e1bf5453eed0a6 # v4.2.0
+        uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
         with:
           name: SARIF file
           path: results.sarif

.github/workflows/release.yaml

@@ -34,7 +34,7 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226  # v3.0.0
       - name: Setup Syft
-        uses: anchore/sbom-action/download-syft@41f7a6c033dbcdf78917f23b652c8b8146298c85 # v0.15.4
+        uses: anchore/sbom-action/download-syft@24b0d5238516480139aa8bc6f92eeb7b54a9eb0a # v0.15.5
       - name: Setup Cosign
         uses: sigstore/cosign-installer@9614fae9e5c5eddabb09f90a270fcb487c9f7149 # v3.3.0
       - name: Setup Kustomize