composer(deps-dev): Bump ergebnis/phpunit-slow-test-detector from 2.7.0 to 2.8.0 #1252

Job	Run time
Backward-Compatibility Analysis (8.1, locked)	15s
Coding Standards (8.1, locked)	16s
Code Coverage (8.1, locked)	17s
Dependency Analysis (8.1, locked)	14s
Mutation Tests (8.1, locked)	21s
Refactoring (8.1, locked)	15s
Security Analysis (8.1, locked)	15s
Static Code Analysis (8.1, locked)	26s
Tests (8.1, lowest)	17s
Tests (8.1, locked)	15s
Tests (8.1, highest)	19s
Tests (8.2, lowest)	22s
Tests (8.2, locked)	25s
Tests (8.2, highest)	19s
Tests (8.3, lowest)	19s
Tests (8.3, locked)	14s
Tests (8.3, highest)	19s
	5m 8s

Provide feedback