fix(ngAnimate): prohibit usage of the `ng-animate` class with classNameFilter

Since ngAnimate uses the `ng-animate` CSS class internally to track
state it is better to keep this as a reserved CSS class to avoid
accidentally adding / removing the CSS class when an animation is
started and closed.

BREAKING CHANGE: partially or fully using a regex value containing
`ng-animate` as a token is not allowed anymore. Doing so will trigger a
minErr exception to be thrown.

So don't do this:

```js
// only animate elements that contain the `ng-animate` CSS class
$animateProvider.classNameFilter(/ng-animate/);

// or partially contain it
$animateProvider.classNameFilter(/some-class ng-animate another-class/);
```

but this is OK:

```js
$animateProvider.classNameFilter(/ng-animate-special/);
```

Closes #11431
Closes #11807