Bump com.graphql-java:graphql-java from 20.7 to 20.9 in /visual-java

Bumps [com.graphql-java:graphql-java](https://github.com/graphql-java/graphql-java) from 20.7 to 20.9.
- [Release notes](https://github.com/graphql-java/graphql-java/releases)
- [Commits](graphql-java/graphql-java@v20.7...v20.9)

---
updated-dependencies:
- dependency-name: com.graphql-java:graphql-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

visual-java/pom.xml

@@ -23,7 +23,7 @@
     <dependency>
       <groupId>com.graphql-java</groupId>
       <artifactId>graphql-java</artifactId>
-      <version>20.7</version>
+      <version>20.9</version>
     </dependency>
     <dependency>
       <groupId>com.graphql-java</groupId>