Update docs.yml

.github/workflows/docs.yml

@@ -1,11 +1,14 @@
 name: Generate terraform docs
 
 on: [pull_request]
+
+permissions: read-all
+
 jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.head_ref }}
 
@@ -16,4 +19,4 @@ jobs:
         tf_docs_output_file: README.md
         tf_docs_output_method: inject
         tf_docs_git_push: 'true'
-        tf_docs_git_commit_message: 'terraform-docs: automated update action'
+        tf_docs_git_commit_message: 'terraform-docs: automated update action'