(cherry-pick) Bump documentation theme version

[ADubhlaoich]

Proposed changes

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Closes #ISSUE

Checklist

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• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
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Release notes

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.84%. Comparing base (d85a6ca) to head (be789c9).
Report is 1 commits behind head on release-1.4.

Additional details and impacted files

@@             Coverage Diff              @@
##           release-1.4    #2488   +/-   ##
============================================
  Coverage        88.84%   88.84%           
============================================
  Files              100      100           
  Lines             7527     7527           
  Branches            50       50           
============================================
  Hits              6687     6687           
  Misses             784      784           
  Partials            56       56           

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