fix: use micronaut-http-client-jdk

The jdk version it not based on Netty.

Author: matrei

grails-forge/grails-forge-core/src/main/java/org/grails/forge/feature/micronaut/MicronautHttpClient.java

@@ -91,7 +91,7 @@ public void apply(GeneratorContext generatorContext) {
 
         generatorContext.addDependency(Dependency.builder()
                 .groupId("io.micronaut")
-                .artifactId("micronaut-http-client")
+                .artifactId("micronaut-http-client-jdk") // Use jdk version as Spring and Micronaut has different Netty versions https://github.com/apache/grails-core/issues/15149
                 .implementation());
 
         // micronaut-http-client no longer provides the jackson implementation