feat: update Java Micronaut generator to support Micronaut 3

[Paullo612]

• fix useBeanValidation option application
• add support for choosing Reactive Streams implementation for generated code through library option
• remove @Controller annotation from generated interfaces, as it is not @Inherited anyway
• use jakarta inject implementation instead of javax, as Micronaut now uses it by default
• generate stub controllers when skipSupportFiles is disabled to be able to run tests and start generated application
• fix bean validation annotations
• add cookies parameters support
• use @Body instead of @QueryValue for form parameters generation
• update pom.xml to use Micronaut 3

closes #946

[Paullo612]

This should not brake anything, as I've left RxJava 2 as default Reactive Streams implementation. The only thing I'm not sure about is removal of @Controller from generated interfaces. Haven't checked if it was inherited to implementation classes with Micronaut 2. But Micronaut generator is marked as experimental anyway.

@HugoMario, can you please take a look at this.

[HugoMario]

hey @Paullo612 sorry for this long delay, I'm going to check this.