Bump sigstore/cosign-installer from 3.1.2 to 3.2.0 (#4679)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.1.2 to 3.2.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.1.2...v3.2.0)

---
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/builder.yml

@@ -131,7 +131,7 @@ jobs:
 
       - name: Install Cosign
         if: needs.init.outputs.publish == 'true'
-        uses: sigstore/cosign-installer@v3.1.2
+        uses: sigstore/cosign-installer@v3.2.0
         with:
           cosign-release: "v2.0.2"
 

.github/workflows/ci.yaml

@@ -351,7 +351,7 @@ jobs:
         with:
           python-version: ${{ needs.prepare.outputs.python-version }}
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.1.2
+        uses: sigstore/cosign-installer@v3.2.0
         with:
           cosign-release: "v2.0.2"
       - name: Restore Python virtual environment