Add constructor with DB connection to AbstractCommand

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	✔️

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 99.05%. Comparing base (e88f5d8) to head (1586487).

Files with missing lines	Patch %	Lines
src/Command/AbstractCommand.php	80.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #980      +/-   ##
============================================
- Coverage     99.05%   99.05%   -0.01%     
+ Complexity     1645     1644       -1     
============================================
  Files            99       99              
  Lines          4124     4122       -2     
============================================
- Hits           4085     4083       -2     
  Misses           39       39              

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