docker: Add pyqt5 dependency

[aussedatlo]

This PR aims to add pyqt5 support to be able to run speculos with qt.

WARNING: As the qt library is not very light, the image size is now 1.24GB instead of 800MB.

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Wiz Scan Summary

Scanner	Findings
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IaC Misconfigurations	1  2
Total	1  2

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.83%. Comparing base (68d20b7) to head (fea420a).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #541   +/-   ##
=======================================
  Coverage   43.83%   43.83%           
=======================================
  Files         125      125           
  Lines       12456    12456           
  Branches      994      994           
=======================================
  Hits         5460     5460           
  Misses       6661     6661           
  Partials      335      335           

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