Fix unmodified gemspec #42

Job	Run time
Lint	25s
Ruby 3.1 - windows-2019	1m 50s
Ruby 3.1 - macos-12	41s
Ruby 3.2 - windows-2019	1m 27s
Ruby 3.1 - ubuntu-20.04	15s
Ruby 3.2 - macos-12	36s
Ruby 3.2 - ubuntu-20.04	16s
Ruby 3.3 - windows-2019	2m 16s
Ruby head - macos-latest (optional)	20s
Ruby 3.3 - ubuntu-20.04	25s
Ruby 3.3 - macos-12	53s
Ruby mswin - windows-2019	1m 12s
Ruby 3.1 - ubuntu-22.04	19s
Ruby head - ubuntu-latest (optional)	13s
Ruby ucrt - windows-2019	1m 2s
Ruby 3.1 - macos-13	43s
Ruby 3.2 - ubuntu-22.04	17s
Ruby 3.2 - macos-13	28s
Ruby head - windows-latest (optional)	1m 5s
Ruby 3.1 - windows-2022	1m 24s
Ruby 3.3 - ubuntu-22.04	24s
Ruby 3.3 - macos-13	46s
Ruby 3.1 - ubuntu-24.04	16s
Ruby 3.2 - windows-2022	1m 32s
Ruby 3.1 - macos-14	22s
Ruby 3.2 - ubuntu-24.04	19s
Ruby 3.3 - windows-2022	1m 46s
Ruby 3.2 - macos-14	27s
Ruby 3.3 - ubuntu-24.04	27s
Ruby mswin - windows-2022	1m 37s
Ruby 3.3 - macos-14	28s
Ruby ucrt - windows-2022	1m 16s
Ruby mingw - windows-2022	1m 8s
	26m 55s

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