todo.sr.ht version upgrade

I pushed this upgrade through in the hope that it would fix
https://todo.dominic-ricottone.com/~dricottone/huttese/4 .

Unfortunately, it did not. Nonetheless, the package is upgraded.

README formatting fix

README formatting fix

Updates from first deployment

git.sr.ht target was mangled.

py3-colour, builds.sr.ht, and py3-srht target versions had to be bumped
down. The first is due to a unit test error; the others are due to
unreleased versions that apparently upstream is keeping private.

Several APKBUILD files had to be updated for version numbers and
checksums. Notably, py3-pygments had to be bumped down a version. It
seems that an updated APKBUILD was pushed to the repo before an updated
apk was pushed to the mirror. I am choosing to follow the mirror as the
canonical target.

New build process

Packages can now be built with `make`. The targets are all based on the
files that are served in the official mirror.

Re-added two dependencies of todo.sr.ht that I has missed.

Reshaping repo

The repo is designed for use with an existing builds.sr.ht service.
Besides lacking that, I am more interested in a containerized workflow
powered by a Makefile. Package source code will live in `pkgsrc/`,
packages will be built into `pkg/`, and packaging keys will be
generated into `keys/`.

Alos trimmed the packages down to what I will build.

soju: upgrade

This includes PostgreSQL fixes.

gamja: upgrade to v1.0.0_beta6

soju: upgrade to v0.5.0

searchhut: upgrade to 24e6800e3607263e3f7751957af18a8ebdb7af48

searchhut: upgrade to 2b6407eacb6f1d682e56157421b408a8cc1cd3a8

py3-mwparserfromhell: new aport

rum: new aport

searchhut: new aport

py3-unidiff: upgrade to 0.7.4

py3-stripe: upgrade to 3.5.0

hub.sr.ht: add post-upgrade

py3-stripe: upgrade to 3.3.0

py3-atpublic: bump pkgrel (again)

py3-celery: upgrade to 5.2.7