Add 'sigalgs=' method for setting accepted signature algorithms #1096

Job	Run time
openssl-1.0.2u	2m 32s
openssl-1.1.0l	1m 34s
openssl-1.1.1w	1m 42s
openssl-3.0.13	2m 54s
openssl-3.1.5	3m 2s
openssl-3.2.1	3m 25s
openssl-3.3.0	3m 23s
libressl-3.1.5	2m 12s
libressl-3.2.7	2m 13s
libressl-3.3.6	2m 17s
libressl-3.4.3	2m 40s
libressl-3.5.3	2m 16s
libressl-3.6.3	2m 47s
libressl-3.7.3	2m 31s
libressl-3.8.4	2m 13s
libressl-3.9.1	2m 10s
openssl-3.0.13 fips	2m 58s
openssl-3.1.5 fips	2m 49s
openssl-3.2.1 fips	3m 8s
openssl-3.3.0 fips	3m 27s
openssl-head	3m 28s
openssl-head fips	3m 28s
openssl-head no-legacy	3m 31s
ruby-versions / Generate Ruby versions	3s
ubuntu-22.04 2.7	59s
ubuntu-22.04 3.0	53s
ubuntu-22.04 3.1	1m 2s
ubuntu-22.04 3.2	57s
ubuntu-22.04 3.3	58s
ubuntu-22.04 head	1m 8s
ubuntu-22.04 truffleruby	1m 38s
ubuntu-22.04 truffleruby-head	1m 49s
ubuntu-20.04 2.7	55s
ubuntu-20.04 3.0	57s
ubuntu-20.04 3.1	52s
ubuntu-20.04 3.2	54s
ubuntu-20.04 3.3	51s
ubuntu-20.04 head	52s
ubuntu-20.04 truffleruby-head	1m 43s
macos-latest 2.7	47s
macos-latest 3.0	37s
macos-latest 3.1	49s
macos-latest 3.2	40s
macos-latest 3.3	41s
macos-latest head	41s
macos-latest truffleruby-head	1m 5s
windows-latest 2.7	5m 25s
windows-latest 3.0	4m 14s
windows-latest 3.1	3m 58s
windows-latest 3.2	4m 21s
windows-latest 3.3	5m 54s
windows-latest head	4m 19s
windows-latest ucrt	3m 58s
windows-latest mswin	2m 45s
	1h 59m 25s

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