Add new `Rails/StrongParametersExpect` cop #486

Job	Run time
Spec - JRuby	1m 47s
Check the oldest supported RuboCop version	28s
Spec - 2.7	30s
Check documentation syntax	14s
Spec - 3.0	52s
Prism	32s
Spec - 3.1	50s
Spec - 3.2	18s
Spec - 3.3	15s
Spec - 3.4	13s
Spec - head	15s
	6m 14s

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