pip: bump regex from 2023.8.8 to 2023.10.3

Bumps [regex](https://github.com/mrabarnett/mrab-regex) from 2023.8.8 to 2023.10.3.
- [Changelog](https://github.com/mrabarnett/mrab-regex/blob/hg/changelog.txt)
- [Commits](mrabarnett/mrab-regex@2023.8.8...2023.10.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

pip-requirements.txt

@@ -16,4 +16,4 @@ edk2-pytool-library==0.18.1
 edk2-pytool-extensions==0.24.1
 edk2-basetools==0.1.29
 antlr4-python3-runtime==4.13.1
-regex==2023.8.8
+regex==2023.10.3