build(deps): Bump the ci group with 2 updates

Bumps the ci group with 2 updates: [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) and [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action).


Updates `sigstore/cosign-installer` from 3.8.2 to 3.9.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@3454372...fb28c2b)

Updates `docker/setup-buildx-action` from 3.11.0 to 3.11.1
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@18ce135...e468171)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-version: 3.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: docker/setup-buildx-action
  dependency-version: 3.11.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: ci
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -40,13 +40,13 @@ jobs:
         uses: anchore/sbom-action/download-syft@9246b90769f852b3a8921f330c59e0b3f439d6e9 # v0.20.1
 
       - name: Setup Cosign
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
+        uses: sigstore/cosign-installer@fb28c2b6339dcd94da6e4cbcbc5e888961f6f8c3 # v3.9.0
 
       - name: Setup QEMU
         uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
 
       - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@18ce135bb5112fa8ce4ed6c17ab05699d7f3a5e0 # v3.11.0
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0