Update to spring boot 2.7.5 and Java 17

[ffroliva]

Hi, Thank you for sharing this project. This is a great example of DDD.

I tried to update the project to spring boot 2.7.5 as a transition to 3 but I ran into an issue with archunit.

io.pillopl.library.lending.architecture.NoSpringInDomainLogicTest is failing:

Architecture Violation [Priority: MEDIUM] - Rule 'no classes that reside in a package '..io.pillopl.library.lending..application..' should depend on classes that reside in a package 'org.springframework..'' was violated (7 times):
Method <io.pillopl.library.lending.book.application.CreateAvailableBookOnInstanceAddedEventHandler.handle(io.pillopl.library.catalogue.BookInstanceAddedToCatalogue)> is annotated with <org.springframework.context.event.EventListener> in (CreateAvailableBookOnInstanceAddedEventHandler.java:0)
Method <io.pillopl.library.lending.book.application.PatronEventsHandler.handle(io.pillopl.library.lending.patron.model.PatronEvent$BookCheckedOut)> is annotated with <org.springframework.context.event.EventListener> in (PatronEventsHandler.java:0)
Method <io.pillopl.library.lending.book.application.PatronEventsHandler.handle(io.pillopl.library.lending.patron.model.PatronEvent$BookHoldCanceled)> is annotated with <org.springframework.context.event.EventListener> in (PatronEventsHandler.java:0)
Method <io.pillopl.library.lending.book.application.PatronEventsHandler.handle(io.pillopl.library.lending.patron.model.PatronEvent$BookHoldExpired)> is annotated with <org.springframework.context.event.EventListener> in (PatronEventsHandler.java:0)
Method <io.pillopl.library.lending.book.application.PatronEventsHandler.handle(io.pillopl.library.lending.patron.model.PatronEvent$BookPlacedOnHold)> is annotated with <org.springframework.context.event.EventListener> in (PatronEventsHandler.java:0)
Method <io.pillopl.library.lending.book.application.PatronEventsHandler.handle(io.pillopl.library.lending.patron.model.PatronEvent$BookReturned)> is annotated with <org.springframework.context.event.EventListener> in (PatronEventsHandler.java:0)
Method <io.pillopl.library.lending.patron.application.hold.HandleDuplicateHold.handle(io.pillopl.library.lending.book.model.BookDuplicateHoldFound)> is annotated with <org.springframework.context.event.EventListener> in (HandleDuplicateHold.java:0)

How should I handle this?