In order to compress static files against pyhton 3.11 a fixed version
with fixed regexp in pyScss is needed. While fix is merged, pyScss is
not tagged/released yet.
While this required only for Debian12, it will work nicely also with older
python versions, since there're almost no changes in the package.
instead of building based on SHA.
Change-Id: I76f945310b70c1b081800c5ba0ec922795b60a73