[FIX] selectCount() does not exists. maybe: select()

[77web]

validation rules like exists:App\Entities\Foo,1 does not work after https://github.com/laravel-doctrine/orm/commit/57612a2aefbda6572760a4e322b424b15eb072cc

Changes proposed in this pull request:

• use select()

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (f5fcab7) 66.88% compared to head (ab56c04) 66.88%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.0 #559 +/- ## ========================================= Coverage 66.88% 66.88% Complexity 563 563 ========================================= Files 83 83 Lines 1806 1806 ========================================= Hits 1208 1208 Misses 598 598 ``` | [Files Changed](https://app.codecov.io/gh/laravel-doctrine/orm/pull/559?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None) | Coverage Δ | | |---|---|---| | [src/Validation/DoctrinePresenceVerifier.php](https://app.codecov.io/gh/laravel-doctrine/orm/pull/559?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=None#diff-c3JjL1ZhbGlkYXRpb24vRG9jdHJpbmVQcmVzZW5jZVZlcmlmaWVyLnBocA==) | `91.66% <100.00%> (ø)` | |

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[eigan]

Typo, thanks! 🙈