build(deps): bump the ci group with 3 updates

Bumps the ci group with 3 updates: [korthout/backport-action](https://github.com/korthout/backport-action), [actions/upload-artifact](https://github.com/actions/upload-artifact) and [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer).


Updates `korthout/backport-action` from 2.2.0 to 2.3.0
- [Release notes](https://github.com/korthout/backport-action/releases)
- [Commits](korthout/backport-action@b982d29...addffea)

Updates `actions/upload-artifact` from 3.1.3 to 4.0.0
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@a8a3f3a...c7d193f)

Updates `sigstore/cosign-installer` from 3.2.0 to 3.3.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@1fc5bd3...9614fae)

---
updated-dependencies:
- dependency-name: korthout/backport-action
  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-major
  dependency-group: ci
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
  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@b982d297e31f500652b2246cf26714796312bd23 # v2.2.0
+        uses: korthout/backport-action@addffea45a2f0b5682f1d5ba0506f45bc18bf174 # v2.3.0
         # xref: https://github.com/korthout/backport-action#inputs
         with:
           # Use token to allow workflows to be triggered for the created PR

.github/workflows/ossf.yaml

@@ -28,7 +28,7 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           publish_results: true
       - name: Upload artifact
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
+        uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 # v4.0.0
         with:
           name: SARIF file
           path: results.sarif

.github/workflows/release.yaml

@@ -36,7 +36,7 @@ jobs:
       - name: Setup Syft
         uses: anchore/sbom-action/download-syft@5ecf649a417b8ae17dc8383dc32d46c03f2312df # v0.15.1
       - name: Setup Cosign
-        uses: sigstore/cosign-installer@1fc5bd396d372bee37d608f955b336615edf79c8 # v3.2.0
+        uses: sigstore/cosign-installer@9614fae9e5c5eddabb09f90a270fcb487c9f7149 # v3.3.0
       - name: Setup Kustomize
         uses: fluxcd/pkg/actions/kustomize@main
       - name: Login to GitHub Container Registry
@@ -155,7 +155,7 @@ jobs:
           --path="./flux-system" \
           --source=${{ github.repositoryUrl }} \
           --revision="${{ github.ref_name }}@sha1:${{ github.sha }}"
-      - uses: sigstore/cosign-installer@1fc5bd396d372bee37d608f955b336615edf79c8 # v3.2.0
+      - uses: sigstore/cosign-installer@9614fae9e5c5eddabb09f90a270fcb487c9f7149 # v3.3.0
       - name: Sign manifests
         env:
           COSIGN_EXPERIMENTAL: 1