Bump graphql-java to 16.1

Author: oliemansm

gradle.properties

@@ -7,7 +7,7 @@ PROJECT_LICENSE=MIT
 PROJECT_LICENSE_URL=https://github.com/graphql-java-kickstart/spring-boot-graphql/blob/master/LICENSE.md
 PROJECT_DEV_ID=apottere
 PROJECT_DEV_NAME=Andrew Potter
-LIB_GRAPHQL_JAVA_VER=16.0
+LIB_GRAPHQL_JAVA_VER=16.1
 LIB_JACKSON_VER=2.12.0
 LIB_SLF4J_VER=1.7.30
 SOURCE_COMPATIBILITY=1.8