chore: add rsdoctor diff action

Author: yifancong

.github/workflows/reusable-build-test.yml

@@ -141,3 +141,22 @@ jobs:
           NODE_NO_WARNINGS: 1
           WASM: 1
         run: pnpm run test:ci
+
+      ### Rsdoctor Diff Action
+      - name: Clone rspack-sourcemap-demo
+        run: git clone git@github.com:yifancong/rspack-diff-minimal.git
+
+      - name: Install dependencies
+        working-directory: rspack-diff-minimal
+        run: pnpm i
+
+      - name: Build project
+        working-directory: rspack-diff-minimal
+        run: pnpm run build
+
+      - name: Report Compressed Size
+        uses: web-infra-dev/rsdoctor-action@main
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          file_path: "rspack-diff-minimal/dist/rsdoctor-data.json"
+          target_branch: "chore/diff-v2"