Update Astro grammar source

[Princesseuh]

Description

Hello! We merged our language-tools repo at Astro into our Astro monorepo, as such the location of the grammar has now changed. I've updated all the paths to point to the new repo.

Checklist:

• I am changing the source of a syntax highlighting grammar

  • Old: https://github.com/withastro/language-tools
  • New: https://github.com/withastro/astro

• I am updating a grammar submodule

[lildude]

Please use the process for replacing a grammar detailed in the CONTRIBUTING.md file to update the paths (and other files the scripts modifies) rather than manually modifying things.

[Princesseuh]

Ah, apologies I missed that. Will do!

[Princesseuh]

Tried to do it, but both in local and in GitHub Codespaces I get errors about submodules not existing, Docker not working etc. when using the script. I'll try again over the weekend perhaps on another computer.

[lildude]

Yeah, this is expected if you're trying to do it with your past modifications in place. Start with a clean checkout of main and things should work fine, though you might hit an issue with git-lfs missing which I'm addressing in #7804

[lildude]

Ooof. I've just hit it in #7804

Error updating vendor/grammars/astro
Cloning into '/home/runner/work/linguist/linguist/vendor/grammars/astro'...
fatal: remote error: upload-pack: not our ref 49a486e05fe5da215842d4542c90e8b8a21879a1
fatal: Fetched in submodule path 'vendor/grammars/astro', but it did not contain 49a486e05fe5da215842d4542c90e8b8a21879a1. Direct fetching of that commit failed.

Looks like the history in the original repo has been rewritten (someone force-pushed) and removed the commit we need.

I'll fix it for now in my PR by pointing to the lastest SHA in the original repo.

[Princesseuh]

Strange! We have force pushes disabled all across the organization, not sure what happened. Thank you for fixing it!

[Princesseuh]

Reset my fork to nothing, did a fresh clone, opened in dev containers and this is what I get (same thing happen with uppercase Astro, in case it matters)

It's very possible I'm stupid.

EDIT: I figured it out, it does that if you don't have the submodule initialized, confusing error.