Most extensions are broken due to missing dependency

Most extensions are broken in the current inkscape package, I tested:

• Interpolate between paths
• Optimize SVG Error message: ModuleNotFoundError: No module named 'tinycss2'

Installing extra/python-tinycss2 fixes the extensions.

Upstream issue: https://gitlab.com/inkscape/inkscape/-/issues/5070

Upstream fix: https://gitlab.com/inkscape/inkscape/-/commit/ac7102f7b9d07df4e41cb324b8ac740718eee465

Steps to reproduce:

1. Create a new file with two paths (paths not live shapes, one can use "Path > Object to Path").
2. Select Extensions > Generate from Paths > Interpolate Between Paths
3. Click Apply
4. Error message pops up