docs: update permissions (#56)

Author: TartanLeGrand

conventional-commits/README.md

@@ -22,6 +22,7 @@ on:
 
 jobs:
   lint-pr-title:
-    uses: iExecBlockchainComputing/github-actions-workflows/.github/workflows/[email protected]
-    secrets: inherit
+    permissions:
+      pull-requests: read
+    uses: iExecBlockchainComputing/github-actions-workflows/.github/workflows/[email protected]
 ```