make cert/crl/ext/extfactory shareable when frozen #69

Job	Run time
openssl-1.0.2u	51s
openssl-1.1.0l	51s
openssl-1.1.1w	1m 1s
openssl-3.0.15	1m 0s
openssl-3.1.7	56s
openssl-3.2.3	55s
openssl-3.3.2	56s
openssl-3.4.0	58s
openssl-master	3m 43s
libressl-3.1.5	55s
libressl-3.2.7	1m 11s
libressl-3.3.6	57s
libressl-3.4.3	59s
libressl-3.5.3	59s
libressl-3.6.3	1m 7s
libressl-3.7.3	1m 2s
libressl-3.8.4	1m 3s
libressl-3.9.2	57s
libressl-4.0.0	57s
openssl-3.0.15 with fips provider	56s
openssl-3.1.7 with fips provider	57s
openssl-3.2.3 with fips provider	48s
openssl-3.3.2 with fips provider	50s
openssl-3.4.0 with fips provider	55s
openssl-master with fips provider	3m 42s
openssl-3.4.0 without legacy provider	56s
ruby-versions / Generate Ruby versions	3s
ubuntu-22.04 2.7	1m 2s
ubuntu-22.04 3.0	54s
ubuntu-22.04 3.1	1m 0s
ubuntu-22.04 3.2	1m 1s
ubuntu-22.04 3.3	1m 2s
ubuntu-22.04 head	58s
ubuntu-22.04 truffleruby	1m 32s
ubuntu-22.04 truffleruby-head	2m 8s
ubuntu-20.04 2.7	59s
ubuntu-20.04 3.0	1m 0s
ubuntu-20.04 3.1	52s
ubuntu-20.04 3.2	56s
ubuntu-20.04 3.3	56s
ubuntu-20.04 head	54s
ubuntu-20.04 truffleruby	1m 38s
ubuntu-20.04 truffleruby-head	1m 58s
macos-latest 2.7	54s
macos-latest 3.0	37s
macos-latest 3.1	38s
macos-latest 3.2	39s
macos-latest 3.3	43s
macos-latest head	53s
macos-latest truffleruby	57s
macos-latest truffleruby-head	1m 25s
windows-latest 2.7	4m 24s
windows-latest 3.0	4m 9s
windows-latest 3.1	4m 5s
windows-latest 3.2	4m 24s
windows-latest 3.3	4m 52s
windows-latest head	4m 48s
windows-latest ucrt	3m 45s
windows-latest mswin	3m 10s
	1h 29m 38s

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