[github-actions]

Increment the add-on patch version and set the release date to today's UTC date (YYMMDD).

Updated declarations:

• bl_info["version"] in __init__.py
• VERSION in __init__.py
• version in blender_manifest.toml

Release workflow version input after merging: 3.21.5.261103

This PR only prepares version metadata; it does not publish a release.
If created with the default GITHUB_TOKEN, run the PR workflow manually on
automation/bump-addon-version-3.21.5.261103,
since that token does not trigger PR workflows.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 35.68%. Comparing base (025b8e4) to head (582a88e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2349   +/-   ##
=======================================
  Coverage   35.68%   35.68%           
=======================================
  Files          87       87           
  Lines       28008    28008           
=======================================
  Hits         9995     9995           
  Misses      18013    18013           

Flag	Coverage Δ
python	35.68% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
__init__.py	0.00% <ø> (ø)

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