Add permissions to workflow and fix security issue

Co-authored-by: jmiller-moko <230051081+jmiller-moko@users.noreply.github.com>

.github/workflows/create-client-fork.yml

@@ -23,6 +23,8 @@ jobs:
   create-fork:
     name: Setup Client Fork
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
 
     steps:
       - name: Validate confirmation