Add permissions to workflows.

Author: fabiocaccamo

.github/workflows/pre-commit-autoupdate.yml

@@ -1,5 +1,9 @@
 name: Pre-commit auto-update
 
+permissions:
+  contents: write
+  pull-requests: write
+
 on:
   # every month
   schedule:

.github/workflows/test-package.yml

@@ -1,5 +1,8 @@
 name: Test package
 
+permissions:
+  contents: read
+
 on:
   push:
     branches: [ main ]