pip: bump edk2-pytool-extensions from 0.27.6 to 0.27.9 (#102)

Bumps
[edk2-pytool-extensions](https://github.com/tianocore/edk2-pytool-extensions)
from 0.27.6 to 0.27.9.

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

@@ -1,4 +1,4 @@
 edk2-pytool-library==0.21.8
-edk2-pytool-extensions==0.27.6
+edk2-pytool-extensions==0.27.9
 ruff==0.5.1
 pytest==8.2.2