Pkgsrc WIP package to upgrade Helix to 25.07.1

[atomicules <base%atomicules.co.uk@localhost>]

Hi all,

I've added a WIP entry to update Helix editor to
25.07.1: https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?
p=pkgsrc-wip.git;a=commitdiff;h=04aa021d3c65500e8cfdb4885974dbbe4f86bb83

Could someone please help me finesse that and get it updated in CVS
main? The bits I'm unsure about:

1. How best to handle the codeberg.org dowload; Most tree-sitter
grammars come from github.org and when extracted include the revision in
the folder/directory name. From codeberg.org they don't. There is only
one download from codeberg.org. I'm special-casing this in the Makefile
at the moment.
2. Whether it's ok to keep the awk parsing of toml - I've had to tweak
that a bit.
3. What to do about the `SUBST_` entries. Some aren't needed so I've
just commented out for now.

Thanks!