Fix duplicate bean exceptions after spring-boot 3.2 update

Fix duplicate bean exceptions after spring-boot 3.2 update

- spring-boot 3.2 seems to be stricter as to how beans may be declared
- to avoid DuplicateBeanExceptions, @Component and @Service annotations
  are removed from some classes in favor of solely relying on their
  @Bean declarations in @Configuration classes

Issue-ID: AAI-4223
Change-Id: I4bb53680bc86f4ff34a6c32d9273c69b34f5ba1d
Signed-off-by: Fiete Ostkamp <fiete.ostkamp@telekom.de>