Bump graphql-java from 15.0 to 17.4

Bumps [graphql-java](https://github.com/graphql-java/graphql-java) from 15.0 to 17.4.
- [Release notes](https://github.com/graphql-java/graphql-java/releases)
- [Commits](https://github.com/graphql-java/graphql-java/compare/v15.0...v17.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index e216214..75a6b1a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -276,7 +276,7 @@
     <dependency>
       <groupId>com.graphql-java</groupId>
       <artifactId>graphql-java</artifactId>
-      <version>15.0</version>
+      <version>17.4</version>
       <scope>test</scope>
     </dependency>
   </dependencies>