[Bug]: `valid-test-tags` rule does not check the test title for tags

Given you only (dis)allow specefic tags:
```js
{
  "rules": {
    "playwright/valid-test-tags": ["error", { "allowedTags": ["@e2e", "@regression"] }]
  }
}
```

And have the following test: 
```js
import { test } from '@playwright/test';

test('test full report @slow', async ({ page }) => {
  // ...
});
```

Then no eslint error is thrown.

While expected `@slow` is checked for validity