ProfilerIntegration_FullRoundtrip_Works is flaky on CI

[jamescrosswell]

See:

• publish: getsentry/sentry-dotnet@5.6.0 publish#5421 (comment)

For the time being, we should skip this test on CI.

[vaind]

fixed by #4144

[jamescrosswell]

This fails frequently in local development as well.

Maybe we add a retry (so if it fails 2 times in a row we definitely have a problem... but we kind of expect it to fail every now and then).