Merge pull request #319 from hydephp/dependabot/github_actions/sigstore/cosign-installer-4.0.0

Bump sigstore/cosign-installer from 3.8.2 to 4.0.0

Author: emmadesilva

.github/workflows/docker.yml

@@ -26,7 +26,7 @@ jobs:
       # Install the cosign tool
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
-        uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb #v3.8.2
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad #v4.0.0
         with:
           cosign-release: 'v2.2.4'