pip: update pytool-library to ~=0.12.1 pytool-extensions to ~= 0.20.0

**edk2-pytool-library**

Updates the requirements on [edk2-pytool-library](https://github.com/tianocore/edk2-pytool-library) to permit the latest version.
- [Release notes](https://github.com/tianocore/edk2-pytool-library/releases)
- [Commits](tianocore/edk2-pytool-library@v0.11.6...v0.12.1)

---
updated-dependencies:
- dependency-name: edk2-pytool-library
  dependency-type: direct:production
...

**edk2-pytool-extensions**

Updates the requirements on [edk2-pytool-extensions](https://github.com/tianocore/edk2-pytool-extensions) to permit the latest version.
- [Release notes](https://github.com/tianocore/edk2-pytool-extensions/releases)
- [Commits](tianocore/edk2-pytool-extensions@v0.19.1...v0.20.0)

---
updated-dependencies:
- dependency-name: edk2-pytool-extensions
  dependency-type: direct:production
...

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

pip-requirements.txt

@@ -12,8 +12,8 @@
 # https://www.python.org/dev/peps/pep-0440/#version-specifiers
 ##
 
-edk2-pytool-library~=0.11.6
-edk2-pytool-extensions~=0.19.1
+edk2-pytool-library~=0.12.1
+edk2-pytool-extensions~=0.20.0
 edk2-basetools==0.1.29
 antlr4-python3-runtime==4.11.1
 regex==2022.10.31