Update plugin id to com.netflix.dgs.codegen to add the company name.

Author: srinivasankavitha

graphql-dgs-codegen-gradle/build.gradle

@@ -61,7 +61,7 @@ pluginBundle {
     website = 'https://github.com/Netflix/dgs-codegen'
     plugins {
         codegen {
-            id = 'dgs.codegen'
+            id = 'com.netflix.dgs.codegen'
             displayName = 'DGS Code Generation Plugin'
             description = 'Gradle plugin for generating Java and Kotlin classes from GraphQL Schema'
             tags = ['Codegen']
@@ -74,7 +74,7 @@ gradlePlugin {
     // Define the plugin
     plugins {
         codegen {
-            id = 'dgs.codegen'
+            id = 'com.netflix.dgs.codegen'
             implementationClass = 'com.netflix.graphql.dgs.codegen.gradle.CodegenPlugin'
             displayName = 'DGS Code Generation Plugin'
         }

graphql-dgs-codegen-gradle/src/test/resources/test-project/build.gradle

@@ -18,7 +18,7 @@
 
 plugins {
     id 'java'
-    id 'dgs.codegen'
+    id 'com.netflix.dgs.codegen'
 }
 
 configurations {

graphql-dgs-codegen-gradle/src/test/resources/test-project/build_with_default_dir.gradle

@@ -18,7 +18,7 @@
 
 plugins {
     id 'java'
-    id 'dgs.codegen'
+    id 'com.netflix.dgs.codegen'
 }
 
 configurations {