composer(deps-dev): Bump ergebnis/php-cs-fixer-config from 6.20.0 to 6.21.0 #1628

Job	Run time
Coding Standards (8.1, locked)	21s
Code Coverage (8.1, locked)	17s
Backward-Compatibility Analysis (8.1, locked)	14s
Dependency Analysis (8.1, locked)	26s
Mutation Tests (8.1, locked)	27s
Refactoring (8.1, locked)	16s
Security Analysis (8.1, locked)	18s
Static Code Analysis (8.1, locked)	36s
Tests (8.1, lowest)	28s
Tests (8.1, locked)	15s
Tests (8.1, highest)	22s
Tests (8.2, lowest)	25s
Tests (8.2, locked)	23s
Tests (8.2, highest)	20s
Tests (8.3, lowest)	17s
Tests (8.3, locked)	15s
Tests (8.3, highest)	21s
	6m 1s

Provide feedback