chore(deps): bump sigstore/cosign-installer from 3.8.2 to 4.0.0 (#1067)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.8.2 to 4.0.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](https://github.com/sigstore/cosign-installer/compare/3454372f43399081ed03b604cb2d021dabca52bb...faadad0cce49287aee09b3a48701e75088a2c6ad)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/pub-release.yml

@@ -170,7 +170,7 @@ jobs:
                   cat SHA256SUMS
 
             - name: Install cosign
-              uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
+              uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
 
             - name: Sign artifacts with cosign (keyless)
               run: |