Consider moving build/check* directories to a common parent #46560
Description
The checks we have for AOT factories, architecture, etc create quite a few top-level directories in build:
- checkAotFactories
- checkArchitectureMain
- checkArchitectureTest
- checkAutoConfigurationClasses
- checkAutoConfigurationImports
- checkSpringFactories
It'd be nice if those where put in a parent, ideally so that classes was more visible.