fix: Local $ref resolution within fragment-extracted external resources

[Stranger6667]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 96.71053% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.15%. Comparing base (b4ec427) to head (db350e3).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
crates/jsonschema-referencing/src/registry.rs	96.07%	4 Missing ⚠️
crates/jsonschema/src/keywords/ref_.rs	98.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #896      +/-   ##
==========================================
+ Coverage   94.13%   94.15%   +0.01%     
==========================================
  Files          78       78              
  Lines       16590    16719     +129     
==========================================
+ Hits        15617    15741     +124     
- Misses        973      978       +5     

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[codspeed-hq]

CodSpeed Performance Report

Merging #896 will degrade performances by 31.17%

_{Comparing dd/fix-more-refs (db350e3) with master (b4ec427)}

Summary

❌ 10 regressions
✅ 51 untouched

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	try_new[draft 2019-09]	26.1 µs	30.3 µs	-14.09%
❌	try_new[draft 2020-12]	26.7 µs	30.9 µs	-13.69%
❌	try_new[draft 4]	24.9 µs	28.8 µs	-13.53%
❌	try_new[draft 6]	25.9 µs	29.9 µs	-13.37%
❌	try_new[draft 7]	27.7 µs	31.8 µs	-12.82%
❌	try_with_resource[CITM]	35.6 µs	43.1 µs	-17.41%
❌	try_with_resource[Fast]	21.8 µs	26.4 µs	-17.35%
❌	try_with_resource[GeoJSON]	61.6 µs	75.2 µs	-18.11%
❌	try_with_resource[Open API]	218.8 µs	317.9 µs	-31.17%
❌	try_with_resource[Swagger]	267.3 µs	369.8 µs	-27.72%