Bug: isIdentityCard test cases

[parasg1999]

The fixtures array includes objects having format

{
  locale: string,
  valid: [],
  invalid: [],
}

Then all the valid and invalid arrays are combined as

// Test fixtures
fixtures.forEach((fixture) => {
  if (fixture.valid) allValid = allValid.concat(fixture.valid);
  if (fixture.invalid) allInvalid = allInvalid.concat(fixture.invalid);
  test({
    validator: 'isIdentityCard',
    valid: fixture.valid,
    invalid: fixture.invalid,
    args: [fixture.locale],
  });
});

The issue is that we should remove the allInvalid array since a card number invalid in one locale may be valid in some other locale.

Would be happy to make a PR :)

[profnandaa]

Sure, please go ahead and make the PR, thanks! 👍