Move header schemas to a dedicated namespace to avoid conflicting with JSON schemas

Author: vearutop

openapi3/reflect.go

@@ -225,7 +225,7 @@ func (r *Reflector) parseResponseHeader(output interface{}) (map[string]HeaderOr
 	res := make(map[string]HeaderOrRef)
 
 	_, err := r.Reflect(output,
-		jsonschema.DefinitionsPrefix("#/components/schemas/"),
+		jsonschema.DefinitionsPrefix("#/components/schemas/header"),
 		jsonschema.CollectDefinitions(r.collectDefinition),
 		jsonschema.PropertyNameTag("header"),
 		jsonschema.InterceptProperty(func(name string, field reflect.StructField, propertySchema *jsonschema.Schema) error {