refactor: update Dockerfile for IFTPipeline.jl

[hollandjg]

Update Dockerfile to:

• use the local version of the repo, rather than cloning from the origin repository first (helps testing)
• set up the Conda environment more easily
• run all the tests
• provide an ENTRYPOINT so you can call docker run -it brownccv/icefloetracker-julia landmask and it'll automatically start up the CLI for the IFTPipeline.

Other changes required:

• Move example pipeline config file into IFTPipeline.jl/tests/test_input directory
• Provide a Julia project and script to set up the Conda environment on any machine
• Update the GitHub actions to use the new Conda environment setup
• Update the GitHub actions to build the new version of the Dockerfile
• Update SOIT to use pipx and inline script metadata rather than the python environment from the Julia package, because that environment isn't available for testing in the GitHub action where we test SOIT (where we don't set up Julia) – this is separated out into feat: update SOIT to use PIPX and an independent Dockerfile #175

[tdivoll]

This is great, I think it just need Cylc updates? I'm happy to help with a little guidance to follow the new logic/entrypoint.

[tdivoll]

I was able to confirm that line 15 indeed gives us python 3.11 and IFT 0.60:

[cpaniaguam]

Some observations, thanks!

[cpaniaguam]

It seems like this will never be imported into a different file or module. Why not drop the if check and collect the imports at the top? Something like

#!/usr/bin/env julia

using Conda, etc.

funciton main()
    ...
end

main()

[cpaniaguam]

In view of this and #193 (comment), I think something like a makefile might be useful to simplify all of this.

[hollandjg]

@hollandjg take another look at this.