Set permissions in workflow

Author: steppi

.github/workflows/auto-translations-pr.yml

@@ -7,6 +7,10 @@ on:
         description: 'Crowdin language code for the language of interest'
         required: true
 
+permissions:
+  contents: write
+  pull-requests: write
+
 jobs:
   auto-translation-pr:
     runs-on: ubuntu-latest