[chore] Stop using constants from jaeger-client-go

[afzal442]

Which problem is this PR solving?

• Part of Upgrade internal use of tracing to OpenTelemetry #3381
• This PR removes jaeger-client pkg constant and replaces it with const variable

[codecov]

Codecov Report

Patch coverage: 62.16% and project coverage change: -0.08% ⚠️

Comparison is base (f1658ed) 97.04% compared to head (7167add) 96.96%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4681      +/-   ##
==========================================
- Coverage   97.04%   96.96%   -0.08%     
==========================================
  Files         301      301              
  Lines       17880    17881       +1     
==========================================
- Hits        17352    17339      -13     
- Misses        423      437      +14     
  Partials      105      105              

Flag	Coverage Δ
unittests	96.96% <62.16%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
model/span.go	87.61% <46.15%> (-12.39%)	⬇️
cmd/collector/app/metrics.go	100.00% <100.00%> (ø)
cmd/collector/app/root_span_handler.go	100.00% <100.00%> (ø)
...ugin/sampling/strategystore/adaptive/aggregator.go	62.71% <100.00%> (ø)

... and 2 files with indirect coverage changes

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[afzal442]

But Yuri, I got to find chaining effect due to that.

jaeger/cmd/collector/app/metrics.go

Line 234 in 10d18e6

if span.ParentSpanID() == 0 {

I am stuck here since its util is having unchanged method. LMK!

jaeger/cmd/collector/app/metrics.go

Line 281 in 10d18e6

tags := map[string]string{"svc": serviceName, "debug": debugStr, samplerTypeKey: samplerType}