Align jaeger probabilistic sampler with trace.TraceIDRatioBased

[diurnalist]

currently the jaegerremotesampler has a custom probabilistic sampler that does not align with how the traceid_ratiobased sampler works. it only looks at the first 64 bits of the trace; the opentelemetry-go sampler looks at the last 64 bits, because there are cases when trace IDs having 64 bits are converted to otel trace IDs, which have 128 bits, and when that happens the first 64 bits are typically ignored/zero-d out.

rather than re-implement this logic, this just pulls in the traceid_ratiobased sampler so we re-use it, ensuring the decisions will be made similarly and predictably.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: diurnalist / name: Jason Anderson (464150d, 9f9cade, b8aa0bb, fa76e44, cf96817, bdd49a9, 072b17b)
• ✅ login: dmathieu / name: Damien Mathieu (4a4b29f)

[diurnalist]

i think jaeger's old probabilistic sampler only looked at 63 bits

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.5%. Comparing base (7f341e4) to head (4a4b29f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
samplers/jaegerremote/sampler.go	75.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #6892     +/-   ##
=======================================
- Coverage   75.5%   75.5%   -0.1%     
=======================================
  Files        207     207             
  Lines      19330   19319     -11     
=======================================
- Hits       14609   14598     -11     
  Misses      4285    4285             
  Partials     436     436             

Files with missing lines	Coverage Δ
samplers/jaegerremote/sampler.go	91.6% <75.0%> (-0.6%)	⬇️

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