chore(deps): update sigstore/cosign-installer action to v4

Author: renovate[bot]

.github/workflows/build.yml

@@ -129,7 +129,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       # Sign container
-      - uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
+      - uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
         if: github.event_name != 'pull_request'
 
       - name: Sign container image