Fix reported lines in the TestCaseProviderSniff

[stronk7]

For problems in the provider function declaration it was pointing to the @dataProvider PHPDoc comment, instead of the function.

Now all problems point to the real line they are. It's (was) completely covered with tests, so it should be safe.

Fixes #72

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (fc409da) 96.61% compared to head (a6ef3c0) 96.61%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #101 +/- ## ========================================= Coverage 96.61% 96.61% Complexity 537 537 ========================================= Files 23 23 Lines 1536 1537 +1 ========================================= + Hits 1484 1485 +1 Misses 52 52 ```

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