chore: use jaeger-idl/proto-gen/api_v2

[javiermolinar]

This pr tries to fix a panic when jaegerremote is used along with the OTEL collector

panic: proto: duplicate enum registered: jaeger.api_v2.SamplingStrategyType
      goroutine 1 [running]:
      github.com/gogo/protobuf/proto.RegisterEnum(...)
       /races/vendor/github.com/gogo/protobuf/proto/properties.go:520
      github.com/jaegertracing/jaeger-idl/proto-gen/api_v2.init.4()
       /traces/vendor/github.com/jaegertracing/jaeger-idl/proto-gen/api_v2/sampling.pb.go:432 +0x219
      )

It also fixes the example by using the jaegerremotesampling extension instead of the deprecated remote_sampling

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: javiermolinar / name: Javi (70665ec, 3c93529, 3a93d4a, bdc0ff8)
• ✅ login: MrAlias / name: Tyler Yahn (99a6e8c, 758fb03)

[javiermolinar]

jaegertracing/jaeger#6494

[javiermolinar]

I've added a line in the changelog :)

[javiermolinar]

Sorry for tagging you @yurishkuro but do we have an eta when this will be included in a new release? We are currently facing this problem, and I would like to get rid of the hacky solution we have. Thank you!

[yurishkuro]

@javiermolinar I am neither maintainer nor approver in this repo, so cannot accelerate merging of the PR.

@open-telemetry/go-approvers can this be merged?

[javiermolinar]

@MrAlias, @dmathieu Sorry for tagging both. Could you merge this? Thank you!

[dmathieu]

Could you fix the conflicts?