composer(deps-dev): bump rector/rector from 1.2.2 to 1.2.3 #305

Job	Run time
Coding Standards (8.1, locked)	38s
Code Coverage (8.1, locked)	1m 18s
Mutation Tests (8.1, locked)	1m 14s
Backward-Compatibility Analysis (8.1, locked)	19s
Dependency Analysis (8.1, locked)	27s
Refactoring (8.1, locked)	24s
Security Analysis (8.1, locked)	15s
Static Code Analysis (8.1, locked)	28s
Tests (8.1, lowest)	20s
Tests (8.1, locked)	20s
Tests (8.1, highest)	26s
Tests (8.2, lowest)	20s
Tests (8.2, locked)	17s
Tests (8.2, highest)	24s
Tests (8.3, lowest)	22s
Tests (8.3, locked)	23s
Tests (8.3, highest)	25s
	8m 20s

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