Update workflows and only run required ones

[susnux]

1. Update the psalm workflow from the templates
2. Update PHPUnit and the workflow from the templates

• Drop all but sqlite as we do not have any database entries we do not need to run so many CI jobs
• But for sqlite we test all supported PHP versions.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fb95410) 43.39% compared to head (17ab02b) 43.39%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1036   +/-   ##
=========================================
  Coverage     43.39%   43.39%           
  Complexity      168      168           
=========================================
  Files            26       26           
  Lines           689      689           
  Branches         31       31           
=========================================
  Hits            299      299           
  Misses          390      390           

Flag	Coverage Δ
unit	25.14% <ø> (ø)

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