Fix duplicate logging when converting logback to Java (#235)

* Fix duplicate logging when converting logback to Java

This commit fixes the logback to Java converter. While conversion
worked, it was actually duplicating logs because the return value
of the configurator was wrong and that it triggered the creation
of additional configuration from logback.

* Fix tests

aot-std-optimizers/src/main/java/io/micronaut/aot/std/sourcegen/Logback14GeneratorHelper.java

@@ -335,7 +335,7 @@ public void postVisitConfiguration(ConfigurationModel model, Model parent) {
             }
         };
         visitor.visit(model);
-        codeBuilder.addStatement(CodeBlock.of("return $T.NEUTRAL", Configurator.ExecutionStatus.class));
+        codeBuilder.addStatement(CodeBlock.of("return $T.DO_NOT_INVOKE_NEXT_IF_ANY", Configurator.ExecutionStatus.class));
         return MethodSpec.methodBuilder("configure")
                 .addModifiers(Modifier.PUBLIC)
                 .returns(Configurator.ExecutionStatus.class)

aot-std-optimizers/src/test/groovy/io/micronaut/aot/std/sourcegen/LogbackConfigurationSourceGeneratorTest.groovy

@@ -78,7 +78,7 @@ public class StaticLogbackConfiguration implements Configurator {
     io_micronaut_core_optim_staticoptimizations.addAppender(stdout);
     io_micronaut_core_io_service_softserviceloader.addAppender(stdout);
     io_micronaut_aot.addAppender(stdout);
-    return Configurator.ExecutionStatus.NEUTRAL;
+    return Configurator.ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
   }
 
   public void setContext(Context context) {
@@ -169,7 +169,7 @@ public class StaticLogbackConfiguration implements Configurator {
     _rootLogger.setLevel(Level.INFO);
     _rootLogger.addAppender(file);
     org_acme.addAppender(console);
-    return Configurator.ExecutionStatus.NEUTRAL;
+    return Configurator.ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
   }
 
   public void setContext(Context context) {
@@ -262,7 +262,7 @@ public class StaticLogbackConfiguration implements Configurator {
     Logger _rootLogger = loggerContext.getLogger(Logger.ROOT_LOGGER_NAME);
     _rootLogger.setLevel(Level.INFO);
     _rootLogger.addAppender(file);
-    return Configurator.ExecutionStatus.NEUTRAL;
+    return Configurator.ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
   }
 
   public void setContext(Context context) {
@@ -348,7 +348,7 @@ public class StaticLogbackConfiguration implements Configurator {
     Logger _rootLogger = loggerContext.getLogger(Logger.ROOT_LOGGER_NAME);
     _rootLogger.setLevel(Level.INFO);
     _rootLogger.addAppender(console);
-    return Configurator.ExecutionStatus.NEUTRAL;
+    return Configurator.ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
   }
 
   public void setContext(Context context) {