ci: fix changeset check checkout permission

Author: akramcodez

.github/workflows/changeset-check.yml

@@ -24,6 +24,7 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0
+          allow-unsafe-pr-checkout: true
 
       - name: Detect a changeset in this PR
         id: detect