[Bug other/126162] gen-MAINTAINERS.py depends on some undocumented version of jsonschema.validators

[arsen at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126162

--- Comment #7 from Arsen Arsenović <arsen at gcc dot gnu.org> ---
(In reply to Drea Pinski from comment #6)
> (In reply to Richard Earnshaw from comment #2)
> > I was expecting that anybody updating the MAINTAINERS file would have a
> > recent enough version of jsonschema to be able to handle a schema from 2020;
> > but I guess this could be a problem when running the testsuite on older
> > machines.
> 
> At home, I use centos 9 (released in December 2021) and that is where I saw
> the failure. Yes there is centos 10 but moving over to a new version seems
> like a harder thing to do.

please try the patch I proposed on that machine, and feel free to commit it
(perhaps with an explanatory comment)