Add Nextflow language server

[edmundmiller]

• feat: add nextflow-language-server
• fix(nextflow): Try going in a different direction
• chore(nextflow): Clean up version
• fix(nextflow): use vsix instead of zip
• chore(nextflow): Update to original repo

Describe your changes

Adds the Nextflow language server that's in the VS Code extension.

Let me know if there's a better way of doing this!

Issue ticket number and link

Checklist before requesting a review

• I have successfully tested installation of the package.
• I have successfully tested the package after installation.
  

Screenshots

[mehalter]

@edmundmiller I know I closed my PR, but I think it would be a good idea to update this PR to use the language server directly rather than the VS Code extension since the repo has CI/CD setup now

[edmundmiller]

@mehalter Done! Let me know if you know how to take care of the other steps like lsp-config, or how to get this set up minimally with neovim! I think we should add those instructions to the nextflow/language-server repo, or link out to the docs on it in the respective places.

[mehalter]

Thanks @edmundmiller I left a few comments for things to fix in the spec here and I commented on the issue you opened on the language server itself with the Neovim installation instructions!

[mehalter]

This language server has been added to nvim-lspconfig and is awaiting this PR for addition to mason-lspconfig: williamboman/mason-lspconfig.nvim#486

[edmundmiller]

@mehalter So this PR is blocked until the mason-lspconfig PR gets unblocked?

[mehalter]

No, this PR needs to be merged before mason-lspconfig

[mehalter]

No, this PR needs to be merged before mason-lspconfig

[edmundmiller]

Gotcha! Anything we need to do here then? First time contributor here 😬