Dedupe dependencies so array_search works

[dpi]

Fixes #65

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.12%. Comparing base (6761320) to head (79a534c).

Additional details and impacted files

@@            Coverage Diff            @@
##               main      #69   +/-   ##
=========================================
  Coverage     98.11%   98.12%           
  Complexity      232      232           
=========================================
  Files            35       35           
  Lines           478      479    +1     
=========================================
+ Hits            469      470    +1     
  Misses            9        9           

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