Bump version to 2.7.1 for 2.7 branch

[zelinh]

Description

Bump version to 2.7.1

Issues Resolved

Part of post release task for #3776

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
  • yarn test:ftr
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov-commenter]

Codecov Report

Merging #3968 (af0c6d2) into 2.7 (a525bcd) will increase coverage by 0.05%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##              2.7    #3968      +/-   ##
==========================================
+ Coverage   66.39%   66.44%   +0.05%     
==========================================
  Files        3229     3229              
  Lines       62045    62045              
  Branches     9597     9597              
==========================================
+ Hits        41194    41228      +34     
+ Misses      18518    18515       -3     
+ Partials     2333     2302      -31     

Flag	Coverage Δ
Linux	66.39% <ø> (ø)
Windows	66.39% <ø> (?)

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see 15 files with indirect coverage changes

[kavilla]

Failures in CI are expected as part of the release process, version bumps need to be merged first before snapshot generation.