Include transaction data in the trace context

[solnic]

Closes #2363

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.69%. Comparing base (e4571d9) to head (a242d30).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2365      +/-   ##
==========================================
+ Coverage   98.67%   98.69%   +0.02%     
==========================================
  Files         208      208              
  Lines       13748    13750       +2     
==========================================
+ Hits        13566    13571       +5     
+ Misses        182      179       -3     

Components	Coverage Δ
sentry-ruby	99.05% <100.00%> (+0.02%)	⬆️
sentry-rails	97.41% <ø> (ø)
sentry-sidekiq	97.01% <ø> (ø)
sentry-resque	97.11% <ø> (+0.32%)	⬆️
sentry-delayed_job	98.92% <ø> (ø)
sentry-opentelemetry	100.00% <ø> (ø)

Files	Coverage Δ
sentry-ruby/lib/sentry/span.rb	100.00% <ø> (ø)
sentry-ruby/spec/sentry/span_spec.rb	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes

[sl0thentr0py]

ty!