composer(deps-dev): Bump ergebnis/php-cs-fixer-config from 6.30.1 to 6.31.0 #1518

Job	Run time
Dependency Analysis (8.1, locked)	24s
Backward-Compatibility Analysis (8.1, locked)	21s
Code Coverage (8.1, locked)	24s
Coding Standards (8.1, locked)	15s
Refactoring (8.1, locked)	14s
Security Analysis (8.1, locked)	19s
Static Code Analysis (8.1, locked)	28s
Tests (8.1, lowest)	21s
Tests (8.1, locked)	13s
Tests (8.1, highest)	20s
Tests (8.2, lowest)	25s
Tests (8.2, locked)	21s
Tests (8.2, highest)	21s
Tests (8.3, lowest)	23s
Tests (8.3, locked)	16s
Tests (8.3, highest)	28s
	5m 33s

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