Reduce heap size in order to prevent resource exhaustion. (#6202)

Author: runningcode

gradle.properties

@@ -1,5 +1,5 @@
 # Daemons heap size
-org.gradle.jvmargs=-Xmx12g -XX:MaxMetaspaceSize=4g -XX:+CrashOnOutOfMemoryError -Dfile.encoding=UTF-8 -XX:+UseParallelGC
+org.gradle.jvmargs=-Xmx8g -XX:MaxMetaspaceSize=2g -XX:+CrashOnOutOfMemoryError -Dfile.encoding=UTF-8 -XX:+UseParallelGC
 org.gradle.caching=true
 org.gradle.parallel=true
 org.gradle.configureondemand=true