refactor: use client.options internally to avoid copying

[vaind]

Removes use of client.Options() from the internal code to avoid copying the options object.

#skip-changelog

[codecov]

Codecov Report

Patch coverage: 97.50% and project coverage change: +0.16 🎉

Comparison is base (4a965bc) 80.49% compared to head (f022537) 80.65%.

❗ Current head f022537 differs from pull request most recent head bb82078. Consider uploading reports for the commit bb82078 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #651      +/-   ##
==========================================
+ Coverage   80.49%   80.65%   +0.16%     
==========================================
  Files          42       43       +1     
  Lines        4327     4332       +5     
==========================================
+ Hits         3483     3494      +11     
+ Misses        716      712       -4     
+ Partials      128      126       -2     

Impacted Files	Coverage Δ
client.go	87.04% <96.87%> (-0.05%)	⬇️
dynamic_sampling_context.go	93.24% <100.00%> (-0.18%)	⬇️
hub.go	87.23% <100.00%> (-0.07%)	⬇️
integrations.go	89.01% <100.00%> (ø)
interfaces.go	92.57% <100.00%> (ø)
span_recorder.go	89.65% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[cleptric]

Let me get you merge access, brb 🙂