test_runner: use validateStringArray for timers.enable()

`apis` which is argument of `timers.enable()` is string array.
So use `validatStringArray` instead of `validateArray`. And
`options` is optional, so update JSDoc.
PR-URL: #49534
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Zijian Liu <lxxyxzj@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

Author: deokjinkim

lib/internal/test_runner/mock/mock_timers.js

@@ -23,8 +23,8 @@ const {
 
 const{
  validateAbortSignal,
- validateArray,
  validateNumber,
+ validateStringArray,
 }=require('internal/validators');
 
 const{
@@ -676,7 +676,7 @@ class MockTimers {
  */
 /**
  * Enables the MockTimers replacing the native timers with the fake ones.
- * @param {EnableOptions} options
+ * @param {EnableOptions} [options]
  */
 enable(options={__proto__: null,apis: SUPPORTED_APIS,now: 0}){
 constinternalOptions={__proto__: null, ...options};
@@ -696,7 +696,7 @@ class MockTimers {
 internalOptions.apis=SUPPORTED_APIS;
 }
 
-validateArray(internalOptions.apis,'options.apis');
+validateStringArray(internalOptions.apis,'options.apis');
 // Check that the timers passed are supported
 ArrayPrototypeForEach(internalOptions.apis,(timer)=>{
 if(!ArrayPrototypeIncludes(SUPPORTED_APIS,timer)){

test/parallel/test-runner-mock-timers.js

@@ -17,6 +17,14 @@ describe('Mock Timers Test Suite', () => {
 });
 });
 
+it('should throw an error if data type of trying to enable a timer is not string',(t)=>{
+assert.throws(()=>{
+t.mock.timers.enable({apis: [1]});
+},{
+code: 'ERR_INVALID_ARG_TYPE',
+});
+});
+
 it('should throw an error if trying to enable a timer twice',(t)=>{
 t.mock.timers.enable();
 assert.throws(()=>{