Disable `Rails/Delegate` for controllers #621

Job	Run time
Check documentation syntax	13s
Spec - JRuby	1m 41s
Check the oldest supported RuboCop version	28s
Spec - 2.7	32s
Prism	30s
Spec - 3.0	34s
Spec - 3.1	29s
Spec - 3.2	20s
Spec - 3.3	20s
Spec - 3.4	19s
Spec - head	18s
	5m 44s

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