chore: Update GitHub Actions

Author: twpayne

.github/workflows/main.yml

@@ -451,7 +451,7 @@ jobs:
       with:
         cache-prefix: release-go
         go-version: ${{ env.GO_VERSION }}
-    - uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad   # v4.0.0
+    - uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22   # v4.1.0
       with:
         cosign-release: v${{ env.COSIGN_VERSION }}
     - name: create-syso