Stats: Fix "MediaWiki.PHPUnit.AssertEquals.Int" in UnitTestingHelperTest

Follows-up I1b9435dcdacd952b, which introduced this and silenced the
warning, but it appears this warning is spot-on:

> $ composer phpcs
> …
> assertEquals accepts many non-zero values, please use strict alternatives like
> assertSame (MediaWiki.PHPUnit.AssertEquals.Int)

We don't want to tolerate something like this:

```
var_dump(1 == true);
class Foo{}
var_dump(1 == new Foo());
var_dump(1 == (object)[]);
var_dump(1 == new stdClass);
var_dump(1 == '01.0');
var_dump(1 == '01.');
var_dump(1 == '01');
var_dump(1 == '1');
```

Bug: T368740
Change-Id: Ib3966b96f65d41b1d320ae043dcbea1a445a55f5

0 files changed, 0 insertions, 0 deletions