[8.x] Add $data param to assertDatabaseCount

[simoebenhida]

This PR complete #32597

It adds $data params to assertDatabaseCount

MyCustomUserFactory::new()
    ->times(50)
    ->create(['name' => 'John']);

$this->assertDatabaseCount('users', 50, ['name' => 'John']);

[simoebenhida]

@driesvints changed it to master 😀

[taylorotwell]

Instead of a breaking change just do: $this->assertEquals(50, User::whereName('John')->count())