SentryExceptionResolver should not send handled errors by default

[maciejwalkowiak]

📜 Description

Change the default SentryExceptionResolver behavior to not send errors handled with Spring exception handlers.

💡 Motivation and Context

I believe current default behavior of SentryExceptionResolver is surprising for users - even if they define an exception handler for an exception - to handle it gracefully - it's still being sent to Sentry as an error. This PR changes the default behavior (that can still be overwritten through setting exception-resolver-order) to send only unhandled exceptions.

💚 How did you test it?

Integration tests

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• No breaking changes

🔮 Next steps

While it does not break the compilation process, it is a breaking change from the behavior point of view.

[bruno-garcia]

It's a considerable change in behavior, would be nice to bump a minor here and add a big note on the top of the release notes (the GitHub one)