pip: Updated pip to latest

Bumps [antlr4-python3-runtime](http://www.antlr.org) from 4.11.1 to
4.12.0 and updates the other pip requirements.

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

pip-requirements.txt

@@ -12,10 +12,11 @@
 # https://www.python.org/dev/peps/pep-0440/#version-specifiers
 ##
 
-edk2-pytool-library==0.19.3
-edk2-pytool-extensions~=0.25.1
-edk2-basetools==0.1.48
-antlr4-python3-runtime==4.13.0
+edk2-pytool-library~=0.19.7 # MU_CHANGE
+edk2-pytool-extensions~=0.26.2 # MU_CHANGE
+edk2-basetools==0.1.49
+antlr4-python3-runtime==4.13.1
+regex
 lcov-cobertura==2.0.2
-regex==2023.8.8
+pygount==1.6.1 # MU_CHANGE
 toml==0.10.2 # MU_CHANGE