For #4082.
~~Per the discussion in the issue, the current plan will likely involve duplicating the redis library calling code once for each cacher, as neither garnet nor redict guarantee continued compatibility with redis.~~
See discussion below for details.
## Tasklist
- [x] Write workflow to run cache-specific unit test(s) only (cache, session, queue, nosql) for each cacher
- [x] Check whether garnet and redict pass unit tests with no code modification (gauge required work)
- both passed, but that is because there were very few tests that test the remote cache store
### Out of scope for this PR
- Improve test coverage
- `modules/cache` against a server
- `modules/session` against a server (also needs tests in general)
- _(?) Duplicate implementation for each cacher_
- _Restructure redis usage in `modules/cache` and `modules/settings/cache`_
- _Restructure `modules/session` and its settings_
- _Restructure `modules/queue` and its settings_
- _Restructure `modules/nosql` and its settings_
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/4138
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: Elias Elwyn <a@jthv.ai>
Co-committed-by: Elias Elwyn <a@jthv.ai>
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