chore(ci): skip tests if no changes under packages (#11288)

* chore(ci): skip tests if no changes under packages

* also skip the build step

Author: ThangHuuVu

.github/workflows/release.yml

@@ -93,12 +93,22 @@ jobs:
       - name: Peek
         run: pnpm peek
         if: ${{ github.repository == 'nextauthjs/next-auth' && github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+      - name: Check for changes under /packages
+        id: check-packages
+        run: |
+          if git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep '^packages/'; then
+            echo "PACKAGES_CHANGES=true" >> $GITHUB_ENV
+          else
+            echo "PACKAGES_CHANGES=false" >> $GITHUB_ENV
+          fi
       - name: Build
+        if: ${{ env.PACKAGES_CHANGES == 'true' }}
         run: pnpm build
       - name: Lint
         run: pnpm lint
         timeout-minutes: 15
       - name: Run unit tests
+        if: ${{ env.PACKAGES_CHANGES == 'true' }}
         run: pnpm test
       - name: Get installed Playwright version
         id: playwright-version