pkgkit: allow overriding repository

For use building the edge repo

py3-colour: fix stupid bullshit

py3-*: bump pkgrel for python rebuild

py3-amqp: upgrade to 5.0.7

gamja: upgrade

soju: upgrade

Changelog:

- Add support for draft/account-registration proxying
- Add "sasl status" command
- Validate network addresses
- More context plumbing
- Fix upstream gauge metric, add soju_upstream_connect_errors_total metric
- Add exponential backoff when re-connecting to upstream
- Don't retry connecting on permanent failure
- Fallback to alt nick
- Logging improvements
- Various bug fixes

*.sr.ht: Enable prometheus multiprocessing mode

charsrv: upgrade to 1.0.2

chartsrv: new aport

builds.sr.ht: Add missing initd dependencies

gamja: add branding patch

py3-humanize: upgrade to 3.13.1

gamja: upgrade to 1.0.0_beta1-r13

This adds a post-connection SASL auth dialog, linkifies error
messages, and other improvements.

soju: upgrade to 0.3.0-r1

Provides better auth failure error messages. Forgot to bump pkgver
in the second to previous upgrade (about a week ago) when soju
0.3.0 was released.

soju: upgrade

sachet: upgrade to 0.3.0

sr.ht-nginx: upgrade to latest version

gamja: upgrade and use new build system

gamja now supports bundling the webapp with a build system.

soju: upgrade

py3-stripe: upgrade to 2.63.0