SpringBoot Migrate @Import classes to use constructor injection

See https://github.com/spring-projects/spring-framework/issues/23637

We may have a few *Aware based implementation that we can migrate.

Comment From: wilkinsona

Some classes in the public API are potentially affected and I'm not sure how we should handle them. AbstractRepositoryConfigurationSourceSupport is one interesting example. If we change it to use constructor injection, all of its sub-classes will have to change too. Previously, they were unaware of their super-class's use of ResourceLoader, BeanFactory, and Environment.

Comment From: philwebb

Interesting, I guess those might be better left as they are.