Merge Release v2026.3.1

[rocco8773]

• Generate change log file (CHANGELOG.rst) using towncrier
towncrier build --version 2026.3.1 --yes
• Move generated change log file CHANGELOG.rst from root director to docs/changelog
• Rename CHANGELOG.rst -> 2026.3.1.rst
• Add changelog to the toctree contained in docs/changelog/index.rst
• Remove dev from the toctree contained in docs/changelog/index.rst
• Release pacakge using the GitHub release mechanics
• Put back the dev entry in the toctree contained in docs/changelog/index.rst
• Merge using a Merge Commit (NOT a Squash Commit)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.86%. Comparing base (10d9cd2) to head (5ec018b).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #192   +/-   ##
=======================================
  Coverage   98.86%   98.86%           
=======================================
  Files          54       54           
  Lines        3772     3772           
  Branches      727      727           
=======================================
  Hits         3729     3729           
  Misses         39       39           
  Partials        4        4           

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