Bump sigstore/cosign-installer from 3.1.2 to 3.2.0 (#2687)

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
...

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

.github/workflows/autorelease.yml

@@ -32,7 +32,7 @@ jobs:
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
-      - uses: sigstore/cosign-installer@v3.1.2          # installs cosign
+      - uses: sigstore/cosign-installer@v3.2.0          # installs cosign
       - uses: anchore/sbom-action/download-syft@v0.14.3 # installs syft
       # ubuntu is missing wixl https://github.com/actions/virtual-environments/issues/3857
       -