chore: update reviewdog.yml for improved PR source handling

Author: JellyBrick

.github/workflows/reviewdog.yml

@@ -18,8 +18,6 @@ jobs:
       checks: write
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Install pnpm
         uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320
@@ -34,7 +32,20 @@ jobs:
           cache: 'pnpm'
 
       - name: Install dependencies
-        run: pnpm install --frozen-lockfile
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Checkout PR source files
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          sparse-checkout: src
+          path: __pr_src
+
+      - name: Overlay PR source
+        run: |
+          rm -rf src
+          cp -r __pr_src/src src
+          rm -rf __pr_src
 
       - uses: reviewdog/action-eslint@556a3fdaf8b4201d4d74d406013386aa4f7dab96
         with: