[Fix] workflow(owner-notification): fix workflow error (#756)

Signed-off-by: samzong <[email protected]>

Author: samzong

.github/workflows/owner-notification.yml

@@ -23,12 +23,19 @@ jobs:
 
       - name: Get changed files
         id: changed-files
-        uses: tj-actions/changed-files@v46
+        uses: actions/github-script@v7
         with:
-          files: |
-            **/*
-          base_sha: ${{ github.event.pull_request.base.sha }}
-          sha: ${{ github.event.pull_request.head.sha }}
+          result-encoding: string
+          script: |
+            // Retrieve changed files via GitHub API to avoid relying on fork refs
+            const files = await github.paginate(github.rest.pulls.listFiles, {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.issue.number,
+              per_page: 100,
+            });
+            const filenames = files.map(f => f.filename);
+            core.setOutput('all_changed_files', filenames.join(' '));
 
       - name: Find owners and notify
         uses: actions/github-script@v7