🔒 pin delete_doc_comment_trigger.yml actions to commit SHAs

Author: paulinebm

.github/workflows/delete_doc_comment_trigger.yml

@@ -7,6 +7,6 @@ on:
 
 jobs:
   delete:
-    uses: huggingface/doc-builder/.github/workflows/delete_doc_comment_trigger.yml@main
+    uses: huggingface/doc-builder/.github/workflows/delete_doc_comment_trigger.yml@90b4ee2c10b81b5c1a6367c4e6fc9e2fb510a7e3  # main
     with:
       pr_number: ${{ github.event.number }}