Update RSpec 4 CI to the monorepo #113

Job	Run time
Confirm config and documentation	13s
Test coverage	14s
Edge RuboCop: internal_investigation	16s
Edge RuboCop RSpec: internal_investigation	16s
Edge RuboCop: spec	16s
Edge RuboCop RSpec: spec	15s
RSpec 4	15s
Ruby 2.7: internal_investigation	27s
Ruby 2.7: spec	30s
Ruby 3.0: internal_investigation	17s
Ruby 3.0: spec	13s
Ruby 3.1: internal_investigation	15s
Ruby 3.1: spec	13s
Ruby 3.2: internal_investigation	16s
Ruby 3.2: spec	17s
Ruby 3.3: internal_investigation	16s
Ruby 3.3: spec	13s
Ruby ruby-head: internal_investigation	11s
Ruby ruby-head: spec	13s
Ruby jruby-9.4: internal_investigation	53s
Ruby jruby-9.4: spec	57s
	6m 56s

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