jaeger trace exporter is deprecated, upgrade to OTLP

[retzkek]

The change is already in the tracing lib but is commented out, so there's probably some reason we're still using JaegerExporter (dependency availability?), but this needs to be revisited as the JaegerExporter is deprecated and we should send everything through the OpenTelemetry collector (the job wrapper already is using OTLP).

jobsub_lite/lib/tracing.py

Line 43 in 1bf8d37

# from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter # type: ignore

Related: #592

[retzkek]

The jaeger python client was last updated four years ago, so let's not put this off too much longer. No pressure to move from jaeger/thrift format on the backend side at this time.