Returns keysize in bits #887

Job	Run time
openssl-1.0.2u	3m 16s
openssl-1.1.0l	1m 43s
openssl-1.1.1w	1m 55s
ruby-versions / Generate Ruby versions	3s
openssl-3.0.12	5m 30s
openssl-3.1.4	2m 59s
libressl-3.1.5	1m 38s
libressl-3.2.7	2m 26s
libressl-3.3.6	2m 28s
libressl-3.4.3	2m 36s
libressl-3.5.3	3m 16s
libressl-3.6.3	3m 19s
libressl-3.7.3	1m 59s
libressl-3.8.1	1m 40s
openssl-3.0.12 fips	5m 10s
openssl-3.1.4 fips	5m 29s
openssl-head	5m 25s
openssl-head fips	3m 29s
ubuntu-22.04 2.7	55s
ubuntu-22.04 3.0	29s
ubuntu-22.04 3.1	1m 11s
ubuntu-22.04 3.2	1m 37s
ubuntu-22.04 head	1m 18s
ubuntu-22.04 truffleruby	1m 42s
ubuntu-22.04 truffleruby-head	1m 40s
ubuntu-20.04 2.7	30s
ubuntu-20.04 3.0	27s
ubuntu-20.04 3.1	30s
ubuntu-20.04 3.2	39s
ubuntu-20.04 head	40s
ubuntu-20.04 truffleruby-head	41s
macos-latest 2.7	1m 5s
macos-latest 3.0	49s
macos-latest 3.1	1m 47s
macos-latest 3.2	3m 34s
macos-latest head	37s
macos-latest truffleruby-head	2m 49s
windows-latest 2.7	6m 24s
windows-latest 3.0	3m 38s
windows-latest 3.1	4m 49s
windows-latest 3.2	4m 56s
windows-latest ucrt	3m 58s
windows-latest mswin	3m 26s
	1h 44m 32s

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