Bump to version 2.7.1

[TonyCTHsu]

Fixed

• Tracing: Fix missing version tag (fix: Apply DD_VERSION on all spans that use the default or global service name #4075)
• Profiling: Fix profiling not loading in certain situations on Ruby 2.5 and 3.3 ([PROF-10967] Fix profiler not loading due to "rb_obj_info" symbol not found #4161)

[ivoanjo]

👍 LGTM

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-11-28 15:16:55

Comparing candidate commit 278d48f in PR branch bump_to_version_2.7.1 with baseline commit 70116bf in branch 2.7-stable.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 29 metrics, 2 unstable metrics.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (2.7-stable@70116bf). Learn more about missing BASE report.

Additional details and impacted files

@@              Coverage Diff              @@
##             2.7-stable    #4172   +/-   ##
=============================================
  Coverage              ?   97.76%           
=============================================
  Files                 ?     1350           
  Lines                 ?    81091           
  Branches              ?     4087           
=============================================
  Hits                  ?    79280           
  Misses                ?     1811           
  Partials              ?        0           

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