test: Add comprehensive unit tests for schema validation #26

Job	Run time
SBOM & Vulnerability Analysis	1m 2s
Validate	9s
Build (linux, arm64)	41s
Test (1.24.x)	1m 15s
Lint	42s
Security Scan	2m 9s
Test (1.25.x)	1m 11s
Build (windows, amd64)	38s
Build (darwin, amd64)	18s
Build (darwin, arm64)	40s
Build (linux, amd64)	39s
	9m 24s

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