New Rule: SpringTransactionalRules: TransactionalMethodsAreProxyable

[lasselindqvist]

I would add basically the same rules as have been done for cacheable methods, but for Transactional, too, since they also need to be proxied in order for the annotation to work.

It should check both jakarta.transaction.Transactional and org.springframework.transaction.annotation.Transactional.

[lasselindqvist]

I guess this is a duplicate of #2 so closing.