docs: Improve security notice documentation #87

Job	Run time
Lint	23s
Ruby 3.1 - windows-2019	1m 15s
Ruby 3.1 - ubuntu-20.04	12s
Ruby 3.2 - windows-2019	2m 11s
Ruby 3.1 - macos-13	21s
Ruby 3.2 - ubuntu-20.04	12s
Ruby 3.3 - windows-2019	2m 53s
Ruby 3.2 - macos-13	21s
Ruby head - macos-latest (optional)	11s
Ruby 3.3 - ubuntu-20.04	18s
Ruby mswin - windows-2019	52s
Ruby 3.3 - macos-13	43s
Ruby head - ubuntu-latest (optional)	7s
Ruby 3.4 - ubuntu-20.04	20s
Ruby ucrt - windows-2019	38s
Ruby 3.4 - macos-13	31s
Ruby head - windows-latest (optional)	58s
Ruby truffleruby - ubuntu-20.04	25s
Ruby 3.1 - windows-2022	1m 25s
Ruby 3.1 - macos-14	14s
Ruby 3.1 - ubuntu-22.04	11s
Ruby 3.2 - windows-2022	1m 32s
Ruby 3.2 - macos-14	13s
Ruby 3.2 - ubuntu-22.04	9s
Ruby 3.3 - windows-2022	3m 2s
Ruby 3.3 - macos-14	16s
Ruby mswin - windows-2022	1m 17s
Ruby 3.4 - macos-14	19s
Ruby ucrt - windows-2022	1m 28s
Ruby 3.3 - ubuntu-22.04	19s
Ruby 3.1 - macos-15	10s
Ruby mingw - windows-2022	56s
Ruby 3.4 - ubuntu-22.04	15s
Ruby 3.2 - macos-15	10s
Ruby truffleruby - ubuntu-22.04	30s
Ruby 3.3 - macos-15	18s
Ruby 3.1 - ubuntu-24.04	14s
Ruby 3.4 - macos-15	17s
Ruby 3.2 - ubuntu-24.04	17s
Ruby 3.3 - ubuntu-24.04	22s
Ruby 3.4 - ubuntu-24.04	21s
Ruby truffleruby - ubuntu-24.04	25s
	27m 31s

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