feat: add version bump script and action

[znorgaard]

This PR adds a ci/update-version script which can be used to update the version stored in pyproject.toml.

It also adds a github action triggered by a workflow dispatch (GUI) that will:

1. Checkout this repository
2. Compare the new version to the previous version to ensure it's higher
3. Checkout a new branch
4. Update the pyproject.toml script
5. Commit the change and push up to github
6. Open a pull request with the change

One thing to note is that we're using the github action token for these steps, so the initial commit and pull request will not trigger other automations. When a user merges the pull request, that merge commit will trigger other automations.

See this action trigger: https://github.com/seqwell/longplexpy/actions/runs/11746405567
From this PR: #7

Remaining automation steps:

1. Add an action that will tag the commit with the chore(#.#.#) commit message
2. Add an action that will generate a release when a tag is added to main matching the versioning pattern
3. Add an action that will build and push the docker image to dockerhub on any merge to main (versioning of the image is handled in the docker-build-image script).

[clintval]

I realize if poetry is available you could do: poetry version ${NEW_VERSION}. And it will Just Work!

[znorgaard]

Poetry is way cleaner! That's a great solution.