test: limit Android workflow build parallelism

Author: moluopro

.github/workflows/test-android.yml

@@ -96,7 +96,7 @@ jobs:
         run: ./android-configure "$ANDROID_NDK_HOME" "$ANDROID_API_LEVEL" arm64
         working-directory: node
       - name: Build
-        run: make -j
+        run: make -j$(getconf _NPROCESSORS_ONLN)
         working-directory: node
       - name: Verify
         run: file out/Release/node