dev: validate test configurations (#4520)

Author: ldez

go.mod

@@ -85,6 +85,7 @@ require (
 	github.com/ryancurrah/gomodguard v1.3.0
 	github.com/ryanrolds/sqlclosecheck v0.5.1
 	github.com/sanposhiho/wastedassign/v2 v2.0.7
+	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1
 	github.com/sashamelentyev/interfacebloat v1.1.0
 	github.com/sashamelentyev/usestdlibvars v1.25.0
 	github.com/securego/gosec/v2 v2.19.0