Bump regex from 2026.4.4 to 2026.7.19

Bumps [regex](https://github.com/mrabarnett/mrab-regex) from 2026.4.4 to 2026.7.19.
- [Changelog](https://github.com/mrabarnett/mrab-regex/blob/hg/changelog.txt)
- [Commits](mrabarnett/mrab-regex@2026.4.4...2026.7.19)

---
updated-dependencies:
- dependency-name: regex
  dependency-version: 2026.7.19
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -142,7 +142,7 @@ kunlunxin = [
     "hydrax==0.1.0",
     "hyperparameter==0.5.6",
     "psutil==6.1.0",
-    "regex==2026.4.4",
+    "regex==2026.7.19",
     "torch==2.9.0+cu129",
     "torchaudio==2.9.0+cu129",
     "torchvision==0.24.0+cu129",