CamelTestSupport: removal of wrong annotation + addition of method for @Override

[JiriOndrusek]

fixes https://issues.apache.org/jira/browse/CAMEL-20784

I remoced the annotation (CamelQuarkusTest) which does not exist and I moved the validation into a protected method. Child class is able to override the behavior if needed.

Description

Target

• [ ] I checked that the commit is targeting the correct branch (note that Camel 3 uses camel-3.x, whereas Camel 4 uses the main branch)

Tracking

• [ ] If this is a large change, bug fix, or code improvement, I checked there is a JIRA issue filed for the change (usually before you start working on it).

Apache Camel coding standards and style

• [ ] I checked that each commit in the pull request has a meaningful subject line and body.

• [ ] I have run mvn clean install -DskipTests locally and I have committed all auto-generated changes

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[JiriOndrusek]

FYI @orpiske Ideally I'd use 'claszz.isAssignableFrom(CamelQuarkusTestSupport.class' instead of moving the validation into protected method. But because I can use only String name of the class, I'd need to find class by name and handle ClassNotFoundException. I see solution in this PR clearer for the users. In case you disagree I'll refactor it differently. (I see positives and negatives in both solutions)

[orpiske]

~As for the CAMEL-20784, I think we should investigate if Java's sealed classes can solve the problem.~

Likely can't, based on my conversation with @JiriOndrusek.

[orpiske]

@JiriOndrusek I think we can close this one, right?

[orpiske]

This has become invalid in the context of CAMEL-20785 changes. Let's close it.