Include automatic maven sync

Author: oliemansm

build.gradle

@@ -171,8 +171,13 @@ subprojects {
                 userOrg = 'graphql-java-kickstart'
                 version {
                     name = project.version
-
-                    
+                    gpg {
+                        sign = true
+                    }
+                    mavenCentralSync {
+                        user = System.env.OSS_USER_TOKEN_KEY ?: project.findProperty('OSS_USER_TOKEN_KEY') ?: ''
+                        password = System.env.OSS_USER_TOKEN_PASS ?: project.findProperty('OSS_USER_TOKEN_PASS') ?: ''
+                    }
                 }
             }
         }