Change workflow permissions for fork pull requests. (openhab#1585)

Signed-off-by: Jerome Luckenbach <[email protected]>

Author: Confectrician

.github/workflows/cherryPickAutomation.yml

@@ -2,13 +2,11 @@ name: Cherry pick automation
 # Automatically create pull requests to release branches on condition
 
 on:
-  pull_request:
+  pull_request_target:
     branches:
       - main
     types: ["closed"]
 
-permissions: write-all
-
 jobs:
   cherry_pick_release_stable:
     runs-on: ubuntu-latest