[pom] Update maven-compiler-plugin to 3.6.2
[pom] Update maven-compiler-plugin to 3.6.2

dblock/waffle,Waffle/waffle,dblock/waffle,hazendaz/waffle,hazendaz/waffle,dblock/waffle,Waffle/waffle,Waffle/waffle,hazendaz/waffle,dblock/waffle