Remove Python 3.8 from tox

tox.ini

@@ -2,7 +2,7 @@
 # fakeroot -u tox --recreate
 
 [tox]
-envlist = py{38,39,310}-{none,fuse2,fuse3}
+envlist = py{39,310}-{none,fuse2,fuse3}
 minversion = 3.2
 requires =
 	pkgconfig