[Jaeger] Add system tests for http thrift integration with Jaeger agent

[simitt]

Add system tests sending spans via a Jaeger client (http) to the APM Server.

See if we can leverage python opentelemetry-api for the tests. Be aware that it is only supported for python 3.

Part of #2886

[simitt]

According to Jaeger Docs#client-featuresjaeger.thrift over HTTP is not supported for Python.

An option is to start adding integration-tests in golang, using a local Elasticsearch test instance, and ensuring integration tests are only run when running system tests.

An alternative would be to record an http trift request from another library, e.g. go and then use the recorded event together with the python apache thrift implementation to send requests via the python system tests.

@axw any other suggestions are very welcome.

[axw]

An alternative would be to record an http trift request from another library, e.g. go and then use the recorded event together with the python apache thrift implementation to send requests via the python system tests.

A simpler option would be to just send the pre-recorded data with requests, similar to what we do for the standard intake API:

requests.post(..., headers={"content-type": "application/vnd.apache.thrift.binary"})

It would be ideal to use a Jaeger client directly, but I think this reasonable would be reasonable to start with.

[simitt]

We can probably setup an end-to-end test including using a jaeger client to the APM Integration Testing repo, which is better suited for that any ways.