Bump regex from 2026.2.19 to 2026.2.28

[dependabot]

Bumps regex from 2026.2.19 to 2026.2.28.

Changelog

Sourced from regex's changelog.

Version: 2026.2.28

Replaced atomic operations with mutex on pattern object for free-threaded Python.

Version: 2026.2.26

PR [#598](https://github.com/mrabarnett/mrab-regex/issues/598): Fix race condition in storage caching with atomic operations.
Replaced use of PyUnicode_GET_LENGTH with PyUnicode_GetLength.

Version: 2026.2.19

Added \z as alias of \Z, like in re module.
Added prefixmatch as alias of match, like in re module.

Version: 2026.1.15

Re-uploaded.

Version: 2026.1.14

Git issue 596: Specifying {e<=0} causes ca 210× slow-down.
Added RISC-V wheels.

Version: 2025.11.3

Git issue 594: Support relative PARNO in recursive subpatterns.

Version: 2025.10.23

'setup.py' was missing from the source distribution.

Version: 2025.10.22

Fixed test in main.yml.

Version: 2025.10.21

Moved tests into subfolder.

Version: 2025.10.20

Re-organised files.
Updated to Unicode 17.0.0.

Version: 2025.9.20

... (truncated)

Commits

• df2d5ac Replaced atomic operations with mutex on pattern object for free-threaded Pyt...
• ed3d9ca Replaced use of PyUnicode_GET_LENGTH with PyUnicode_GetLength.
• 28dd3e7 Merge pull request #598 from kevmo314/fix-storage-caching-race
• cd631d8 Fix race condition in storage caching with atomic operations
• See full diff in compare view

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.25%. Comparing base (0ec5ba4) to head (84555c4).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             3.14   #12177      +/-   ##
==========================================
- Coverage   98.25%   98.25%   -0.01%     
==========================================
  Files         129      129              
  Lines       45683    45683              
  Branches     2473     2473              
==========================================
- Hits        44887    44886       -1     
  Misses        615      615              
- Partials      181      182       +1     

Flag	Coverage Δ
CI-GHA	98.13% <ø> (-0.01%)	⬇️
OS-Linux	97.89% <ø> (-0.01%)	⬇️
OS-Windows	95.63% <ø> (ø)
OS-macOS	97.16% <ø> (-0.01%)	⬇️
Py-3.10.11	96.70% <ø> (ø)
Py-3.10.19	97.04% <ø> (-0.13%)	⬇️
Py-3.11.14	97.41% <ø> (ø)
Py-3.11.9	96.94% <ø> (ø)
Py-3.12.10	97.02% <ø> (ø)
Py-3.12.12	97.50% <ø> (ø)
Py-3.13.12	97.73% <ø> (ø)
Py-3.14.3	97.67% <ø> (-0.01%)	⬇️
Py-3.14.3t	96.79% <ø> (-0.01%)	⬇️
Py-pypy3.11.13-7.3.20	96.83% <ø> (-0.01%)	⬇️
VM-macos	97.16% <ø> (-0.01%)	⬇️
VM-ubuntu	97.89% <ø> (-0.01%)	⬇️
VM-windows	95.63% <ø> (ø)

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[codspeed-hq]

Merging this PR will not alter performance

✅ 59 untouched benchmarks

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_{Comparing dependabot/pip/3.14/regex-2026.2.28 (84555c4) with 3.14 (0ec5ba4)}