pip: bump edk2-pytool-library to 0.23.13, regex to 2026.4.4 (#1390)

Updates the requirements on
[edk2-pytool-library](https://github.com/tianocore/edk2-pytool-library)
and [regex](https://github.com/mrabarnett/mrab-regex) to permit the
latest version.

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pip-requirements.txt

@@ -12,10 +12,10 @@
 # https://www.python.org/dev/peps/pep-0440/#version-specifiers
 ##
 
-edk2-pytool-library~=0.23.12
+edk2-pytool-library~=0.23.13
 edk2-pytool-extensions~=0.31.0
 xmlschema==4.3.1
-regex==2026.3.32
+regex==2026.4.4
 pygount==3.1.1
 pywin32==311; sys_platform == 'win32'
 setuptools==82.0.1