Zipkin Receiver: Reduce the judgment of zipkin v1 version

[klboke]

Description:
Ex. Reduce the judgment of zipkin v1 version

[codecov]

Codecov Report

Merging #2990 (59cab6f) into main (d10b842) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2990      +/-   ##
==========================================
- Coverage   91.65%   91.65%   -0.01%     
==========================================
  Files         312      312              
  Lines       15427    15426       -1     
==========================================
- Hits        14139    14138       -1     
  Misses        881      881              
  Partials      407      407              

Impacted Files	Coverage Δ
receiver/zipkinreceiver/trace_receiver.go	90.38% <100.00%> (-0.10%)	⬇️

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