Fix test runner for parallel tests

[var77]

In parallel tests we should only drop the database when starting the tests (if test file is begin.sql) as all the test are running against the same database.

[codecov[bot]]

Codecov Report

Merging #204 (98d5445) into narek/release-0.0.5 (4c188d0) will not change coverage. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## narek/release-0.0.5 #204 +/- ## ==================================================== Coverage 82.97% 82.97% ==================================================== Files 17 17 Lines 1204 1204 Branches 258 258 ==================================================== Hits 999 999 Misses 81 81 Partials 124 124 ```