test: Add test showing Baggage and Context interation with Tracing

[cijothomas]

For discussing #2718

[codecov]

Codecov Report

Attention: Patch coverage is 94.52055% with 4 lines in your changes missing coverage. Please review.

Project coverage is 79.7%. Comparing base (b33f0cc) to head (741c9d7).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
opentelemetry-sdk/src/trace/mod.rs	94.5%	4 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2732   +/-   ##
=====================================
  Coverage   79.6%   79.7%           
=====================================
  Files        123     123           
  Lines      23034   23107   +73     
=====================================
+ Hits       18356   18426   +70     
- Misses      4678    4681    +3     

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[scottgerring]

lgtm