Bump rubocop-rspec to 2.29.2 and enable new cops #257

Job	Run time
Confirm config and documentation	15s
Edge RuboCop: internal_investigation	18s
Test coverage	17s
Edge RuboCop: spec	18s
Prism	44s
Ruby 2.7: internal_investigation	31s
Ruby 2.7: spec	32s
Ruby 3.0: internal_investigation	18s
Ruby 3.0: spec	17s
Ruby 3.1: internal_investigation	14s
Ruby 3.1: spec	16s
Ruby 3.2: internal_investigation	16s
Ruby 3.2: spec	16s
Ruby 3.3: internal_investigation	13s
Ruby 3.3: spec	15s
Ruby ruby-head: internal_investigation	16s
Ruby ruby-head: spec	18s
Ruby jruby-9.4: internal_investigation	1m 3s
Ruby jruby-9.4: spec	55s
	7m 32s

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