feat: scope PAT-using release/publish jobs to 'release' environment

Author: zdenko-kovac

.github/workflows/publish.yaml

@@ -152,6 +152,7 @@ jobs:
   update-cop:
     name: Update component operator
     runs-on: ubuntu-24.04
+    environment: release
     needs: validate
 
     steps:

.github/workflows/release.yaml

@@ -38,6 +38,7 @@ jobs:
   release:
     name: Trigger release
     runs-on: ubuntu-24.04
+    environment: release
     permissions:
       contents: write