Merge pull request #3118 from rspec/fix-ruby-head-hash-syntax #1291

Job	Run time
Rubocop	29s
Ruby 2.7 (Windows)	6m 35s
Ruby 3.3	4m 33s
Ruby 2.6 (Windows)	4m 45s
Ruby 3.2	4m 23s
Legacy Ruby Builds (2.1.9)	2m 48s
Ruby 2.5 (Windows)	7m 15s
Ruby 3.1	4m 32s
Ruby 2.4 (Windows)	3m 56s
Legacy Ruby Builds (2.0)	2m 41s
Ruby 3.0	4m 38s
Ruby 2.3 (Windows)	5m 6s
Legacy Ruby Builds (1.9.3)	2m 32s
Ruby 2.7	4m 40s
Ruby 2.2 (Windows)	4m 31s
Legacy Ruby Builds (1.9.2)	6m 19s
Ruby 2.6	4m 18s
Legacy Ruby Builds (1.8.7)	2m 45s
Ruby 2.5	4m 17s
Ruby 2.4	4m 9s
Legacy Ruby Builds (REE)	3m 14s
Ruby 2.3	4m 10s
Legacy Ruby Builds (JRuby 1.7)	11m 48s
Ruby 2.2	4m 40s
Legacy Ruby Builds (JRuby 1.7 1.8 mode)	9m 33s
Ruby ruby-head	2m 37s
Legacy Ruby Builds (JRuby 9.1.17.0)	13m 20s
Ruby jruby-9.2.13.0	19m 15s
Ruby 2.7 with diff-lcs 1.3	4m 53s
Ruby 2.7 with diff-lcs 1.4.3	4m 42s
	2h 43m 24s

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