Bump sigstore/cosign-installer from 3.3.0 to 3.4.0 (#980)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.3.0...v3.4.0)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
           fetch-depth: 0
       - uses: docker/setup-qemu-action@v3
       - uses: docker/setup-buildx-action@v3
-      - uses: sigstore/cosign-installer@v3.3.0
+      - uses: sigstore/cosign-installer@v3.4.0
       - uses: anchore/sbom-action/[email protected]
       - name: GHCR Login
         uses: docker/login-action@v3