Update build.yml

Updated the upload-artifact action version from v2 to v4 as per github guideline https://github.blog/changelog/2024-02-13-deprecation-notice-v1-and-v2-of-the-artifact-actions/

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
         run: ./gradlew check --stacktrace
       - name: Upload lint and test reports
         if: always()
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: execution-reports
           path: |