Change default user to root

library/gradle

@@ -1,6 +1,6 @@
 Maintainers: Keegan Witt <[email protected]> (@keeganwitt)
 GitRepo: https://github.com/keeganwitt/docker-gradle.git
-GitCommit: 936defb9c684b39ecde4c8dda302786fe6b15369
+GitCommit: 514d98fa538c9b80a991bc4a226daa64a19bf51c
 
 Tags: 5.4.1-jdk8, 5.4-jdk8, jdk8, 5.4.1-jdk, 5.4-jdk, jdk, 5.4.1, 5.4, latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x