Fix unmodified gemspec #43

Job	Run time
Lint	23s
Ruby 3.1 - macos-12	30s
Ruby 3.1 - windows-2019	2m 2s
Ruby 3.2 - macos-12	32s
Ruby 3.1 - ubuntu-20.04	19s
Ruby 3.3 - macos-12	1m 7s
Ruby 3.2 - windows-2019	1m 36s
Ruby head - macos-latest (optional)	18s
Ruby 3.1 - macos-13	29s
Ruby 3.2 - ubuntu-20.04	15s
Ruby head - ubuntu-latest (optional)	12s
Ruby 3.3 - windows-2019	1m 38s
Ruby 3.2 - macos-13	50s
Ruby 3.3 - ubuntu-20.04	27s
Ruby 3.3 - macos-13	48s
Ruby head - windows-latest (optional)	1m 20s
Ruby mswin - windows-2019	55s
Ruby 3.1 - ubuntu-22.04	17s
Ruby 3.1 - macos-14	22s
Ruby ucrt - windows-2019	59s
Ruby 3.2 - ubuntu-22.04	17s
Ruby 3.2 - macos-14	17s
Ruby 3.1 - windows-2022	1m 30s
Ruby 3.3 - macos-14	24s
Ruby 3.3 - ubuntu-22.04	25s
Ruby 3.2 - windows-2022	1m 40s
Ruby 3.1 - ubuntu-24.04	16s
Ruby 3.3 - windows-2022	1m 42s
Ruby 3.2 - ubuntu-24.04	17s
Ruby mswin - windows-2022	1m 24s
Ruby 3.3 - ubuntu-24.04	22s
Ruby ucrt - windows-2022	1m 23s
Ruby mingw - windows-2022	1m 9s
	26m 25s

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