Major dependency updates

[luispabon]

• php 8.0 --> 8.1
• symfony/console 5.x --> 6.x
• symfony/var-dumper 5.x --> 6.x
• infection/infection 0.25 -->0.26
• bump version from 3.3.x to 3.4.0

[codecov]

Codecov Report

Merging #61 (42d8167) into master (1c577ad) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##              master       #61   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        52        52           
===========================================
  Files              7         7           
  Lines            144       144           
===========================================
  Hits             144       144           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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