[coding-style] Decouple ArrowFunctionToFirstClassCallableRector to allow step-by-step upgrade #32875

Job	Run time
End to end test - e2e/no-parallel-reflection-resolver	21s
End to end test - e2e/applied-polyfill-php80	24s
End to end test - e2e/applied-rule-removed-node	21s
End to end test - e2e/different-path-over-skip-config	16s
End to end test - e2e/applied-rule-change-docblock	23s
End to end test - e2e/applied-rule-return-array-nodes	40s
End to end test - e2e/invalid-paths	22s
End to end test - e2e/only-option	21s
End to end test - e2e/only-option-quote-single-bsdouble	18s
End to end test - e2e/applied-auto-import	26s
End to end test - e2e/only-option-quote-double-equalnone	21s
End to end test - e2e/parallel with space	21s
End to end test - e2e/only-option-quote-single	32s
End to end test - e2e/parallel-reflection-resolver	24s
End to end test - e2e/only-option-quote-single-equalnone	25s
End to end test - e2e/parallel-custom-config	25s
End to end test - e2e/print-new-node	19s
	6m 39s

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