Prevent gradle daemon from crashing in smoke tests (#4016)

Author: yifanyang

smoke-tests/gradle.properties

@@ -15,4 +15,4 @@
 android.enableR8=true
 android.useAndroidX=true
 
-org.gradle.jvmargs=-Xmx8g -XX:MaxPermSize=8g
+org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=4g