perf: Use Vec on small set of properties

[Stranger6667]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 89.10891% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.53%. Comparing base (a4da0cd) to head (e8e2324).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
crates/jsonschema/src/keywords/properties.rs	89.10%	11 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #965   +/-   ##
=======================================
  Coverage   94.52%   94.53%           
=======================================
  Files          79       79           
  Lines       19852    19934   +82     
=======================================
+ Hits        18765    18844   +79     
- Misses       1087     1090    +3     

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[codspeed-hq]

Merging this PR will improve performance by 18.05%

⚡ 3 improved benchmarks
✅ 62 untouched benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	build[CITM]	426.5 µs	361.3 µs	+18.05%
⚡	build[GeoJSON]	1.3 ms	1.2 ms	+13.56%
⚡	build[Fast]	182 µs	154.9 µs	+17.48%

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_{Comparing dd/faster-props (e8e2324) with master (a4da0cd)}