Feature/docker kwargs

[limx0]

Thanks for contributing to Prefect!

Please describe your work and make sure your PR:

• adds new tests (if appropriate)
• add a changelog entry in the changes/ directory (if appropriate)
• updates docstrings for any new functions or function arguments, including docs/outline.toml for API reference docs (if appropriate)

Note that your PR will not be reviewed unless all three boxes are checked.

What does this PR change?

Simply adds a container_name arg to CreateContainer. This allows starting/stopping/removing using a name rather than container_id, which is often more convenient.

Why is this PR important?

I have two separate flows that start and stop containers, this allows me to refer create/delete containers based on some name.

[codecov]

Codecov Report

Merging #2904 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

[joshmeek]

Thanks for the PR @limx0! Looks like you need to add the container_name to the docstring for your tasks. Could you also add this changelog entry to the changes/ directory under pr2904.yaml with the contents of something like:

task:
    - "Add `container_name` kwarg to `CreateContainer` Docker task - [#2904](https://github.com/PrefectHQ/prefect/pull/2904)"

contributor:
    - "[Bradley McElroy](https://github.com/limx0)"

(I would add it myself but looks like it won't let me make changes to this branch)

[limx0]

Thanks @joshmeek, those few things are fixed now