test(dependabot): use pull_request_target event

Author: shenxianpeng

.github/workflows/run-test.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches: main
     paths-ignore: "docs/**"
-  pull_request:
+  pull_request_target:
     branches: main
     paths-ignore: "docs/**"
   workflow_dispatch:
@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
-          token: ${{ secrets.PAT_TOKEN }}
+          token: ${{ github.token }}
       - name: retag latest commit for testing
         run: |
           git config user.name 'github-actions'