chore: update graphql-java-servlet to 12.0.0

Author: oliemansm

gradle.properties

@@ -32,7 +32,7 @@ TARGET_COMPATIBILITY=1.8
 LIB_GRAPHQL_JAVA_VER=17.3
 LIB_EXTENDED_SCALARS_VER=17.0
 LIB_SPRING_BOOT_VER=2.5.4
-LIB_GRAPHQL_SERVLET_VER=12.0.0-SNAPSHOT
+LIB_GRAPHQL_SERVLET_VER=12.0.0
 LIB_GRAPHQL_JAVA_TOOLS_VER=11.1.2
 LIB_GRAPHQL_ANNOTATIONS_VER=9.1
 LIB_REFLECTIONS_VER=0.9.11