bump edk2-pytool-library and MU_BASECORE submodule (#271)

Bumps the version of edk2-pytool-library and the MU_BASECORE submodule
as there is an integration task to upgrade both MU_BASECORE submodule
and edk2-pytool-library at the same time.

Signed-off-by: Joey Vagedes <joeyvagedes@microsoft.com>

MU_BASECORE

@@ -1 +1 @@
-Subproject commit 90a7dfa17d5312186511a1483e919a91a728cbfe
+Subproject commit f6ba44028a7e9171ac5d921c7279fa5f4cf5bf11

pip-requirements.txt

@@ -12,7 +12,7 @@
 # https://www.python.org/dev/peps/pep-0440/#version-specifiers
 ##
 
-edk2-pytool-library==0.12.1 
+edk2-pytool-library==0.13.0 
 edk2-pytool-extensions==0.21.1
 xmlschema==2.1.1
 regex==2022.10.31