Build subprojects in parallel

Signed-off-by: Lantao Jin <[email protected]>

.github/workflows/sql-test-and-build-workflow.yml

@@ -51,7 +51,7 @@ jobs:
     - name: Build with Gradle
       run: |
         chown -R 1000:1000 `pwd`
-        su `id -un 1000` -c "./gradlew --continue build"
+        su `id -un 1000` -c "./gradlew --continue --parallel build"
 
     - name: Create Artifact Path
       run: |