feat(ci): update permissions in notify-deployment workflow

- Set contents permission to read
- Set deployments permission to write

Author: MarkusNeusinger

.github/workflows/notify-deployment.yml

@@ -10,6 +10,10 @@ on:
       - 'core/**'
       - 'pyproject.toml'
 
+permissions:
+  contents: read
+  deployments: write
+
 jobs:
   changes:
     runs-on: ubuntu-latest