pip: bump xmlschema from 3.4.3 to 3.4.4

Bumps [xmlschema](https://github.com/sissaschool/xmlschema) from 3.4.3 to 3.4.4.
- [Release notes](https://github.com/sissaschool/xmlschema/releases)
- [Changelog](https://github.com/sissaschool/xmlschema/blob/master/CHANGELOG.rst)
- [Commits](sissaschool/xmlschema@v3.4.3...v3.4.4)

---
updated-dependencies:
- dependency-name: xmlschema
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pip-requirements.txt

@@ -14,7 +14,7 @@
 
 edk2-pytool-library~=0.22.2
 edk2-pytool-extensions~=0.28.0
-xmlschema==3.4.3
+xmlschema==3.4.4
 regex==2024.11.6
 pygount==1.8.0
 pywin32==308; sys_platform == 'win32'