Address jsonschema-rs backend review feedback #149

Job	Run time
py3.10-ubuntu-latest-jsonschema	48s
py3.11-ubuntu-latest-jsonschema	53s
py3.14-ubuntu-latest-jsonschema	1m 13s
py3.14-windows-latest-jsonschema	2m 33s
py3.12-ubuntu-latest-jsonschema-rs	56s
py3.12-windows-latest-jsonschema	1m 54s
py3.12-ubuntu-latest-jsonschema	55s
py3.13-windows-latest-jsonschema	1m 56s
py3.13-windows-latest-jsonschema-rs	1m 50s
py3.13-ubuntu-latest-jsonschema	54s
py3.10-windows-latest-jsonschema	1m 53s
py3.11-windows-latest-jsonschema	2m 2s
	17m 47s

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