Init graphql servlet properly before executing requests fix #246

Author: oliemansm

gradle.properties

@@ -40,7 +40,7 @@ LIB_GRAPHQL_JAVA_VER = 13.0
 LIB_JUNIT_VER = 4.12
 LIB_SPRING_CORE_VER = 5.0.4.RELEASE
 LIB_SPRING_BOOT_VER = 2.1.5.RELEASE
-LIB_GRAPHQL_SERVLET_VER = 7.5.0
+LIB_GRAPHQL_SERVLET_VER = 7.5.1-SNAPSHOT
 LIB_GRAPHQL_JAVA_TOOLS_VER = 5.6.1
 LIB_COMMONS_IO_VER = 2.6
 kotlin.version=1.3.31