Skip diffuse commenting on 3rd party PRs (#887)

The github token doesn't have write permissions when running on forks

Author: davidliu

.github/workflows/android.yml

@@ -237,16 +237,22 @@ jobs:
           old-file-path: client-sdk-android/diffuse-source-file
           new-file-path: client-sdk-android/livekit-android-sdk-release.aar
 
+      - name: Log diffuse output
+        run: |
+          echo "Diffuse output:"
+          echo "${{ steps.diffuse.outputs.diff-gh-comment }}"
+
       # Consuming diffuse action output
 
       - uses: peter-evans/find-comment@v4
+        if: github.event.pull_request.head.repo.full_name == github.repository
         id: find_comment
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body-includes: Diffuse output
 
       - uses: peter-evans/create-or-update-comment@v5
-        if: ${{ steps.diffuse.outputs.diff-raw != null || steps.find_comment.outputs.comment-id != null }}
+        if: github.event.pull_request.head.repo.full_name == github.repository && (steps.diffuse.outputs.diff-raw != null || steps.find_comment.outputs.comment-id != null)
         with:
           body: |
             Diffuse output:

.github/workflows/dependency_diff.yml

@@ -27,14 +27,20 @@ jobs:
         with:
           project: 'livekit-android-sdk'
 
+      - name: Log dependency diff
+        run: |
+          echo "Dependency diff:"
+          echo "${{ steps.dependency-diff.outputs.text-diff }}"
+
       - uses: peter-evans/find-comment@v4
+        if: github.event.pull_request.head.repo.full_name == github.repository
         id: find_comment
         with:
           issue-number: ${{ github.event.pull_request.number }}
           body-includes: Dependency diff
 
       - uses: peter-evans/create-or-update-comment@v5
-        if: ${{ steps.dependency-diff.outputs.text-diff != null || steps.find_comment.outputs.comment-id != null }}
+        if: github.event.pull_request.head.repo.full_name == github.repository && (steps.dependency-diff.outputs.text-diff != null || steps.find_comment.outputs.comment-id != null)
         with:
           body: |
             Dependency diff: