Migrate php test runner to pest

[SamuelWei]

Type (Highlight the corresponding type)

• Bugfix
• Feature
• Documentation
• Refactoring (e.g. Style updates, Test implementation, etc.)
• Other (please describe): Developer Experience

Checklist

• Code updated to current develop branch head
• Passes CI checks
• Is a part of an issue
• Tests added for the bugfix or newly implemented feature, describe below why if not
• Changelog is updated
• Documentation of code and features exists

Changes

• Switch to Pest as test runner to improve speed and coverage integration into IDEs
• Add new service that can be used by IDEs test runners that don't disturb the main service used for development

[cypress]

PILOS    Run #1449

Run Properties:   Passed #1449  •  efeeb8a080: Migrate php test runner to pest

Project	PILOS
Branch Review	migrate-to-pest
Run status	Passed #1449
Run duration	04m 55s
Commit	efeeb8a080: Migrate php test runner to pest
Committer	Samuel Weirich
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	237
View all changes introduced in this branch ↗︎

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.05%. Comparing base (896dc40) to head (efeeb8a).

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #1713   +/-   ##
==========================================
  Coverage      81.05%   81.05%           
  Complexity      1340     1340           
==========================================
  Files            361      361           
  Lines           9223     9223           
  Branches         851      851           
==========================================
  Hits            7476     7476           
  Misses          1747     1747           

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