Revert graphql-java back to 20.2 (#1302)

build.gradle

@@ -20,7 +20,7 @@ repositories {
 
 dependencies {
     compileOnly "org.freemarker:freemarker:2.3.32"
-    compileOnly "com.graphql-java:graphql-java:21.0"
+    compileOnly "com.graphql-java:graphql-java:20.2"
     compileOnly "com.fasterxml.jackson.core:jackson-databind:2.15.2"
     compileOnly "com.typesafe:config:1.4.2"
 

plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle

@@ -27,7 +27,7 @@ dependencies {
     implementation "io.github.kobylynskyi:graphql-java-codegen:${version}"
 
     implementation "org.freemarker:freemarker:2.3.32"
-    implementation "com.graphql-java:graphql-java:21.0"
+    implementation "com.graphql-java:graphql-java:20.2"
     implementation "com.fasterxml.jackson.core:jackson-databind:2.15.2"
     implementation "com.typesafe:config:1.4.2"
 

plugins/maven/graphql-java-codegen-maven-plugin/pom.xml

@@ -121,7 +121,7 @@
         <dependency>
             <groupId>com.graphql-java</groupId>
             <artifactId>graphql-java</artifactId>
-            <version>21.0</version>
+            <version>20.2</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>