Implement command for clearing old private distributions files

[karniv00l]

No description provided.

[codecov]

Codecov Report

Merging #244 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #244   +/-   ##
=========================================
  Coverage     99.68%   99.68%           
- Complexity     1513     1522    +9     
=========================================
  Files           250      251    +1     
  Lines          4404     4445   +41     
=========================================
+ Hits           4390     4431   +41     
  Misses           14       14           

Impacted Files	Coverage Δ	Complexity Δ
src/Command/ClearOldPrivateDistsCommand.php	100.00% <100.00%> (ø)	6.00 <6.00> (?)
src/Entity/Organization/Package/Version.php	100.00% <100.00%> (ø)	11.00 <0.00> (ø)
src/Query/User/Model/PackageName.php	100.00% <100.00%> (ø)	4.00 <2.00> (+1.00)
src/Query/User/PackageQuery/DbalPackageQuery.php	100.00% <100.00%> (ø)	23.00 <1.00> (+1.00)
src/Service/Organization/PackageManager.php	100.00% <100.00%> (ø)	16.00 <1.00> (+1.00)
...ackageSynchronizer/ComposerPackageSynchronizer.php	98.59% <100.00%> (+0.02%)	24.00 <0.00> (ø)

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