Add Composer Require Checker

[vjik]

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.40%. Comparing base (1bd8c4a) to head (fe1b5fb).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master      #46   +/-   ##
=========================================
  Coverage     95.40%   95.40%           
  Complexity       34       34           
=========================================
  Files             3        3           
  Lines            87       87           
=========================================
  Hits             83       83           
  Misses            4        4           

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