Fix formatting of spec/ruby/optional/capi/ext/hash_spec.c #1843

Job	Run time
RuboCop	32s
specs (ubuntu, 3.0.6)	1m 35s
specs (ubuntu, 3.1.4)	1m 33s
specs (ubuntu, 3.2.2)	1m 32s
specs (ubuntu, 3.3.0)	1m 27s
specs (macos, 3.0.6)	1m 22s
specs (macos, 3.1.4)	1m 53s
specs (macos, 3.2.2)	1m 22s
specs (macos, 3.3.0)	1m 14s
specs (windows, 3.0.6)	4m 34s
specs (windows, 3.1.4)	5m 5s
specs (windows, 3.2.2)	5m 14s
specs (windows, 3.3.0)	3m 45s
specs (ubuntu, 3.3.0, --enable-frozen-string-literal)	1m 30s
	32m 38s

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