Research suspicious introspect in test

[EvilLord666]

after expiration we expect to have 200 status when calling Introspect:

	// 5. Expire token by timeout and got 401 (Unauthorized) status
	time.Sleep(time.Second * time.Duration(testAccessTokenExpiration))
	userInfo = getUserInfo(t, baseUrl, realm, token.AccessToken, "401 Unauthorized")
	// todo(UMV): this one looking strange because token expired and we expect here 200 as status
	tokenIntResult = checkIntrospectToken(t, baseUrl, realm, token.AccessToken, testClient1, testClient1Secret, "200 OK")

Ensure this is right behaviour and fix if not