Release 3.7 - Remove 3.8.0 from 3.7 release changelog

[dreambeyondorange]

Checklist

• Make sure you are pointing to the right branch.
• If you're creating a patch for a branch other than develop add the branch name as prefix in the PR title (e.g. [release-3.6]).
• Check all commits' messages are clear, describing what and why vs how.
• Make sure to have added unit tests or integration tests to cover the new/modified code.
• Check if documentation is impacted by this change.

Please review the guidelines for contributing and Pull Request Instructions.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #2421 (29588af) into release-3.7 (53214a7) will not change coverage.
Report is 1 commits behind head on release-3.7.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           release-3.7    #2421   +/-   ##
============================================
  Coverage        70.34%   70.34%           
============================================
  Files               13       13           
  Lines             1851     1851           
============================================
  Hits              1302     1302           
  Misses             549      549           

Flag	Coverage Δ
unittests	70.34% <ø> (ø)

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