Add OpenRC support

[akr2002]

Address #5265

[akr2002]

I think we should have the script as a separate file instead of putting it in the markdown file. That way the user can simply use wget to download the script instead of copy-pasting the stuff.

[jsjoeio]

This is out of my wheelhouse. cc @oxy or @code-asher any thoughts?

My preference would be to not make this a new docs file and instead put it under https://github.com/coder/code-server/blob/main/docs/install.md as it's own section. I also wouldn't be in favor of adding a new script because then we'd have to maintain the docs and the script.

[code-asher]

Maybe we can take the same path we do with the Helm stuff and delegate maintenance and testing of this to others.

If we are cool with that then splitting out the script to make life easier for users sounds chill to me.

I also like the idea of keeping it all in install.md. Out of scope for this PR but I think we might want to move some other files into there as well like android.md, ios.md, termux.md, and npm.md? Maybe even helm.md.

[jsjoeio]

Maybe we can take the same path we do with the Helm stuff and delegate maintenance and testing of this to others.
If we are cool with that then splitting out the script to make life easier for users sounds chill to me.

Cool! @GNUxeava you can add a script. Would you be okay reviewing any PRs that touch the docs/code you add? We'd make you a CODEOWNER?

[akr2002]

Fine by me

[jsjoeio]

Sweet! @GNUxeava okay to get this in, I think we need to:

• move this section to install.md
• move bash script into it's own script under /ci/dev (right? @code-asher)
• add yourself as under CODEOWNERS and point to new script

[akr2002]

I squashed some commits; hopefully it didn't break anything

[jsjoeio]

Weird...it says there is an error since you don't have write access 🤔

I think this is fine for now. We can always edit later if needed.

[codecov]

Codecov Report

Merging #5266 (2ca1065) into main (eb314ff) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #5266      +/-   ##
==========================================
- Coverage   72.47%   72.42%   -0.05%     
==========================================
  Files          30       30              
  Lines        1671     1672       +1     
  Branches      367      366       -1     
==========================================
  Hits         1211     1211              
- Misses        397      398       +1     
  Partials       63       63              

Impacted Files	Coverage Δ
src/node/wrapper.ts	0.00% <0.00%> (ø)

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