I think the links anchors changed when we changed the docstring generation. It's not a big deal, we can fix it.

[Ruff](https://docs.astral.sh/ruff/) has emerged as the most popular
tool for linting, and covers the rules from flake8 among others. It also
serves as an (almost) drop in replacement for black and isort.

This PR replaces flake8, isort and black with ruff. 
* There are some minor differences is how black and ruff formats the
files, as seen in the files formatted in this PR
* Ruff with `F`, `E` and `W` covers the rules by the existing flake8
according to [these
docs](https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-flake8)
* Updated pre-commit and github actions to also use Ruff

Previously treated `Pod.create(share=[])` the same as not passing the
`share` arg (not passing it to podman), but the podman default is to
share `uts`, `ipc` and `net` namespaces. This means there's no way to
specify that *no* namespaces should be shared.

In addition, podman expects this list of namespaces to be passed as a
single comma-separated arg, e.g. `--share uts,ipc`, not in the form
`--share uts --share ipc` (only the last is taken in this case). This
means there's another bug where the use of the internal
`Command.add_args_iterable()` helper method meant only one shared
namespace could be specified.

It seems possible there could be other related bugs to do with the
format of lists on the CLI...

Hopefully fixing two issues that have started being hit in the "Render
docs" CI job:
* `podman pod create` failing with "initializing source
docker://k8s.gcr.io/pause:3.5: Requesting bear token: invalid status
code from registry 404 (Not Found)", reported at
#625 (comment)
and seen in other PRs too.
* Fixed by updating podman in the CI, since doc generation involves
running podman commands.
* `ModuleNotFoundError: No module named 'griffe.collections'` reported
at
#625 (comment)
and seen in other PRs too.
* Fixed by updating doc package dependencies and pinning a couple more
indirect dependencies (I think the lack of pinning `griffe` while
pinning to an older version of `mkdocstrings-python` was the
problem...).

Fixes #594

just like the example in the documentation:

https://squidfunk.github.io/mkdocs-material/setup/changing-the-colors/#automatic-light-dark-mode

Co-authored-by: Lewis Gaul <[email protected]>

Follows #595,
working on
#584.

Follows #595
and #599,
working on
#584.

They should now show up in the docs.

Podman has support for a "network exists" command which checks if a
network exists. This adds support for that command, although it does so
by way of network inspect for compatibility with Docker, which does not
have a standalone `network exists` command.

Closes #618

---------

Co-authored-by: Gabriel de Marmiesse <[email protected]>