Ensure that latest version is not removed when limit is applied

[karniv00l]

Mentioned in #307

[codecov]

Codecov Report

Merging #312 into master will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #312      +/-   ##
============================================
- Coverage     99.49%   99.48%   -0.01%     
+ Complexity     1957     1940      -17     
============================================
  Files           295      295              
  Lines          5754     5686      -68     
============================================
- Hits           5725     5657      -68     
  Misses           29       29              

Impacted Files	Coverage Δ	Complexity Δ
...ackageSynchronizer/ComposerPackageSynchronizer.php	98.16% <100.00%> (+0.03%)	31.00 <0.00> (+1.00)
...curity/PackageScanner/SensioLabsPackageScanner.php	100.00% <100.00%> (ø)	18.00 <0.00> (ø)
src/Controller/RepoController.php	100.00% <0.00%> (ø)	15.00% <0.00%> (-5.00%)
src/Service/Organization/PackageManager.php	100.00% <0.00%> (ø)	16.00% <0.00%> (-13.00%)

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