tex-subfiles{,-doc}: update to 2.2

2.2
Bugfix release: The previous version, v2.1, introduced an
incompatibility between the subfiles package and the tabular
environment, which has been removed in this version.

2.1
subfiles is a class and a package for multi-file projects in LaTeX.
This release fixes a bug which affected packages that use the new
hooks at the begin and end of documents, in particular packages
related to CJK.

2.0
The version makes the subfiles package compatible with the upcoming
October-2020-release of LaTeX and removes some bugs (see the issue tracker
on Github or the accompanying documentation for details). Another major
change is that the preamble of subfiles and text after the end of a
document are skipped, as one would expect. The old behaviour of subfiles
is still available via a package option.


(markd)