fix: update pull-request-lint.yml to remove pull_request and keep only pull_request_target (#106)

Author: andreaangiolillo

.github/workflows/pull-request-lint.yml

@@ -8,14 +8,6 @@ on:
       - reopened
       - ready_for_review
       - edited
-  pull_request:
-    types:
-      - labeled
-      - opened
-      - synchronize
-      - reopened
-      - ready_for_review
-      - edited
 jobs:
   validate:
     name: Validate PR title