composer(deps-dev): Bump psalm/plugin-phpunit from 0.18.4 to 0.19.0 #434

Job	Run time
Code Coverage (8.1, locked)	15s
Coding Standards (8.1, locked)	14s
Backward-Compatibility Analysis (8.1, locked)	21s
Dependency Analysis (8.1, locked)	17s
Mutation Tests (8.1, locked)	25s
Refactoring (8.1, locked)	17s
Security Analysis (8.1, locked)	16s
Static Code Analysis (8.1, locked)	34s
Tests (8.1, lowest)	18s
Tests (8.1, locked)	18s
Tests (8.1, highest)	21s
Tests (8.2, lowest)	20s
Tests (8.2, locked)	26s
Tests (8.2, highest)	19s
Tests (8.3, lowest)	29s
Tests (8.3, locked)	25s
Tests (8.3, highest)	26s
	6m 1s

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