ci: add id-token permission and update the signing command (#5016)

.github/workflows/release.yml

@@ -20,6 +20,12 @@ jobs:
           GO_SEMVER: '~1.19.0'
 
     runs-on: ${{ matrix.os }}
+    # https://github.com/sigstore/cosign/issues/1258#issuecomment-1002251233
+    # https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/about-security-hardening-with-openid-connect#adding-permissions-settings
+    permissions:
+      id-token: write
+      # https://docs.github.com/en/rest/overview/permissions-required-for-github-apps#permission-on-contents
+      contents: read
 
     steps:
     - name: Install Go