build: find the biome config schema from the installed path

[zimeg]

Summary

This PR updates the $schema of biome.json to use the relative path to the installed JSON schema file, as recommended in https://biomejs.dev/reference/configuration/#schema

Fixes an issue where an updated version of biome might add or remove configurations not existing for version 1.8.3, which would invalidate this JSON schema! 😳

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[seratch]

Makese sense; LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.59%. Comparing base (37ae33e) to head (aeb2051).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2363   +/-   ##
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  Coverage   92.59%   92.59%           
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  Files          36       36           
  Lines        7472     7472           
  Branches      653      653           
=======================================
  Hits         6919     6919           
  Misses        545      545           
  Partials        8        8           

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[zimeg]

@seratch thanks for the fast review! 🙏 ✨

I noticed this version seemed unexpected in adjacent changes, and suspect similar patterns might exist elsewhere 🔍 I'll keep an eye out for matching changes in other repos but will merge this now!