Starting profilere from otel exteension + starting from custom classsloadeer is unsupported

[korniltsev-grafanista]

afteer #68
There is still a configuration that I think will not work: when otel extension actually starts vendored profiler and then spring boot jar tries to start profiler again. It likely will not work and idk how to make it work without breaking changes in pyroscope-java. I will create an issue for this case.
imo this should be documented as an unsupported configuration and issue a warning.