Update jaeger-client-go to v2.29.0

[nhatthm]

Update jaeger-client-go to v2.29.0 due to the breaking changes

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[nhatthm]

@googlebot I signed it!

[nhatthm]

Blocked by #18

[dcormier]

It would be nice to move it forward so we can safely update our dependencies.

For anyone trying to update their dependencies and seeing errors like this:

# contrib.go.opencensus.io/exporter/jaeger
../../../../pkg/mod/contrib.go.opencensus.io/exporter/[email protected]/agent.go:76:10: a.client.SeqId undefined (type *agent.AgentClient has no field or method SeqId)
../../../../pkg/mod/contrib.go.opencensus.io/exporter/[email protected]/agent.go:77:30: not enough arguments in call to a.client.EmitBatch
        have (*jaeger.Batch)
        want (context.Context, *jaeger.Batch)
../../../../pkg/mod/contrib.go.opencensus.io/exporter/[email protected]/jaeger.go:361:21: not enough arguments in call to obj.Write
        have (*thrift.TBinaryProtocol)
        want (context.Context, thrift.TProtocol)

You can work around it by adding this to your go.mod:

// TODO: Remove this once this PR is merged and a new version (> 0.2.1) is released.
// https://github.com/census-ecosystem/opencensus-go-exporter-jaeger/pull/17
replace github.com/uber/jaeger-client-go => github.com/uber/jaeger-client-go v2.28.0+incompatible

Shouldn't need it once this PR is merged and a new version is released.

[lelvisl]

will this dependency be updated? or the repository is abandoned?
#19

[lelvisl]

Kindly pinging @rghetia @songy23 to help with a merge.