Fix Quarkus-cli flacky test

[pjgg]

This issue could be related to commit: https://github.com/quarkusio/quarkus/pull/20998/files#diff-b4cbc080dba18bd5f82d2ece4ad078b684bfe808602e4a38e16d7de137d065dcR37

[Sgitario]

This sounds odd to me. The app.start() should be consistent and if's flaky, it should be fixed internally.

What is happening here is that for some reason, it fails to start at first and then it retries several times until eventually it starts ok.

[Sgitario]

This fix seems like a workaround for CLI but that now affects all the scenarios in the test framework with possible side effects.
We should investigate why this test starts behaving flacky to indeed solve the issue.

[Sgitario]

I'm ok with the changes, but add a comment with a link to the upstream issue / or pr to put some context around why this was necessary.