Enhancement: Simplify update of locker

[localheinz]

This PR

• simplifies the update of composer.lock

[codecov]

Codecov Report

Merging #298 into master will decrease coverage by 0.67%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #298      +/-   ##
============================================
- Coverage     84.94%   84.26%   -0.68%     
+ Complexity       37       35       -2     
============================================
  Files             3        3              
  Lines           186      178       -8     
============================================
- Hits            158      150       -8     
  Misses           28       28

Impacted Files	Coverage Δ	Complexity Δ
src/Command/NormalizeCommand.php	85.97% <100%> (-0.66%)	31 <0> (-2)

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