pip: update edk2-pytool-extensions requirement from ~=0.28.0 to ~=0.28.2

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@v0.28.0...v0.28.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

pip-requirements.txt

@@ -13,7 +13,7 @@
 ##
 
 edk2-pytool-library~=0.22.5
-edk2-pytool-extensions~=0.28.0
+edk2-pytool-extensions~=0.28.2
 antlr4-python3-runtime==4.13.2
 regex==2024.11.6
 pygount==1.8.0