Change cloudfoundry content permissions to read

Author: sarahchen6

.github/workflows/add-release-to-cloudfoundry.yaml

@@ -6,7 +6,7 @@ on:
 jobs:
   update-releases:
     permissions:
-      contents: write # Required to commit and push changes to the repository
+      contents: read
     runs-on: ubuntu-latest
     steps:
       - name: Checkout "cloudfoundry" branch