Bump sigstore/cosign-installer from 3.1.1 to 3.2.0

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.1.1 to 3.2.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](6e04d228eb...1fc5bd396d)

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

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

.github/workflows/docker-publish.yml

@@ -41,7 +41,7 @@ jobs:
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
+        uses: sigstore/cosign-installer@1fc5bd396d372bee37d608f955b336615edf79c8 #v3.2.0
         with:
           cosign-release: 'v2.1.1'