Binding spring.main.* properties doesn't work in a native image

[mhalbritter]

In #40592 we introduced a property class to bind the spring.main.* properties too. While this works on the JVM, it doesn't work on native. I guess there are reflection hints missing (and we add superfluous hints for SpringApplication).

[mhalbritter]

I've updated our AOT smoke tests to catch such regressions earlier.