Update run-scripts.sh [ci build]

tools/travis-scripts/run-script.sh

@@ -86,6 +86,10 @@ function build_android()
 
     # build cpp-tests
     pushd $COCOS2DX_ROOT/tests/cpp-tests/proj.android
+    
+    # generate local.properties to use system installed cmake since we require cmake-3.14+
+    CMAKE_PATH=`which cmake`
+    echo "cmake.dir=$CMAKE_PATH">local.properties
     do_retry ./gradlew assembleRelease -PPROP_BUILD_TYPE=cmake -PPROP_APP_ABI=arm64-v8a --parallel --info
     popd
 }