update permission for formatter workflow

Author: Maximilian-Stefan-Ernst

.github/workflows/FormatCheck.yml

@@ -1,14 +1,11 @@
 name: Format suggestions
 on:
-  pull_request:
+  pull_request_target:
     # this argument is not required if you don't use the `suggestion-label` input
     types: [ opened, reopened, synchronize, labeled, unlabeled ]
 jobs:
   code-style:
     runs-on: ubuntu-latest
-      permissions:
-        contents: read
-        pull-requests: write 
     steps:
       - uses: julia-actions/julia-format@v2
         with: