fix(core): correct type definition of ValidationArgs (vuelidate#1026)

remove incorrect use of 'typeof' operator that caused a syntax error (ts(2693))

Co-authored-by: Alexej Rotar <[email protected]>

packages/vuelidate/index.d.ts

@@ -58,7 +58,7 @@ export type ValidationRule <T = any> = ValidationRuleWithParams<any, T> | Valida
 export type ValidationRuleCollection <T = any> = Record<string, ValidationRule<T>>;
 
 export type ValidationArgs<T = unknown> = {
-  [key in keyof T]: ValidationArgs<T[key]> | ValidationRuleCollection<typeof T[key]> | ValidationRule<typeof T[key]>
+  [key in keyof T]: ValidationArgs<T[key]> | ValidationRuleCollection<T[key]> | ValidationRule<T[key]>
 }
 
 export interface RuleResultWithoutParams {