#151 - Shift to PHP8.0

[Jeckerson]

Hello!

• Type: code quality

In raising this pull request, I confirm the following (please check boxes):

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR

Thanks

[codecov]

Codecov Report

Merging #152 (7c1b2db) into master (7dfa9d7) will increase coverage by 5.11%.
The diff coverage is 91.80%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #152      +/-   ##
============================================
+ Coverage     56.79%   61.90%   +5.11%     
+ Complexity      545      497      -48     
============================================
  Files            21       18       -3     
  Lines          1509     1457      -52     
============================================
+ Hits            857      902      +45     
+ Misses          652      555      -97