Fix getWrappedConnection is deprecated

[dmitryuk]

MR to fix getWrappedConnection is deprecated
Also not to calculate version if not mysql or mariadb

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 96.42%. Comparing base (94e297d) to head (92a8f80).
Report is 15 commits behind head on master.

Files with missing lines	Patch %	Lines
...der/Doctrine/Persistence/Helper/PlatformHelper.php	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #222      +/-   ##
==========================================
- Coverage   97.15%   96.42%   -0.74%     
==========================================
  Files          42       42              
  Lines        1721     1705      -16     
==========================================
- Hits         1672     1644      -28     
- Misses         49       61      +12     

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[DamienHarper]

Thanks @dmitryuk

[DamienHarper]

fixed in 3.1.0