fix: update URLs to point to zyntax.org for consistency #27

Job	Run time
SIMD contract (Cranelift)	20s
parse conformance	19s
type + lowering conformance	20s
fmt + clippy	22s
runtime smoke	24s
backend features (default)	24s
backend features (llvm-backend)	1m 9s
	3m 18s

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