Bump version to 6.3.0

Author: vojtapol

README.md

@@ -25,7 +25,7 @@ kotlin.version=1.3.70
 
 Add the dependency:
 ```groovy
-compile 'com.graphql-java-kickstart:graphql-java-tools:6.2.0'
+compile 'com.graphql-java-kickstart:graphql-java-tools:6.3.0'
 ```
 
 ### Using Maven
@@ -41,7 +41,7 @@ Add the dependency:
 <dependency>
     <groupId>com.graphql-java-kickstart</groupId>
     <artifactId>graphql-java-tools</artifactId>
-    <version>6.2.0</version>
+    <version>6.3.0</version>
 </dependency>
 ```
 

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>com.graphql-java-kickstart</groupId>
     <artifactId>graphql-java-tools</artifactId>
-    <version>6.2.1-SNAPSHOT</version>
+    <version>6.3.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>GraphQL Java Tools</name>