chore(2.x): release 2.12.1

[github-actions]

🤖 I have created a release beep boop

2.12.1 (2026-08-19)

Performance Improvements

• Load table schemas lazily and in bulk in Registry (#83) (884cd3a)

Continuous Integration

• Set up release-please for automated releases (c2f9a1e)

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This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.27%. Comparing base (c2f9a1e) to head (ad57fa0).
⚠️ Report is 1 commits behind head on 2.x.

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x      #84   +/-   ##
=========================================
  Coverage     95.27%   95.27%           
  Complexity      602      602           
=========================================
  Files            46       46           
  Lines          1734     1734           
=========================================
  Hits           1652     1652           
  Misses           82       82           

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[github-actions]

🤖 Release is at https://github.com/cycle/schema-builder/releases/tag/2.12.1 🌻