composer(deps-dev): Bump rector/rector from 0.18.13 to 0.19.1 #1283

Job	Run time
Backward-Compatibility Analysis (8.1, locked)	14s
Code Coverage (8.1, locked)	23s
Dependency Analysis (8.1, locked)	17s
Coding Standards (8.1, locked)	27s
Mutation Tests (8.1, locked)	17s
Refactoring (8.1, locked)	16s
Security Analysis (8.1, locked)	15s
Static Code Analysis (8.1, locked)	25s
Tests (8.1, lowest)	17s
Tests (8.1, locked)	15s
Tests (8.1, highest)	17s
Tests (8.2, lowest)	26s
Tests (8.2, locked)	17s
Tests (8.2, highest)	22s
Tests (8.3, lowest)	14s
Tests (8.3, locked)	13s
Tests (8.3, highest)	16s
	5m 11s

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