Add 'sigalgs=' method for setting accepted signature algorithms #1143

Job	Run time
openssl-1.0.2u	48s
openssl-1.1.0l	57s
openssl-1.1.1w	53s
openssl-3.0.14	1m 0s
openssl-3.1.6	56s
openssl-3.2.2	56s
openssl-3.3.1	56s
openssl-master	3m 44s
libressl-3.1.5	59s
libressl-3.2.7	1m 2s
libressl-3.3.6	59s
libressl-3.4.3	59s
libressl-3.5.3	1m 4s
libressl-3.6.3	59s
libressl-3.7.3	1m 2s
libressl-3.8.4	1m 3s
libressl-3.9.2	58s
openssl-3.0.14 with fips provider	39s
openssl-3.1.6 with fips provider	43s
openssl-3.2.2 with fips provider	38s
openssl-3.3.1 with fips provider	37s
openssl-master with fips provider	3m 17s
openssl-3.3.1 without legacy provider	56s
ruby-versions / Generate Ruby versions	1s
ubuntu-22.04 2.7	1m 3s
ubuntu-22.04 3.0	58s
ubuntu-22.04 3.1	1m 5s
ubuntu-22.04 3.2	1m 4s
ubuntu-22.04 3.3	1m 1s
ubuntu-22.04 head	1m 0s
ubuntu-22.04 truffleruby	1m 32s
ubuntu-22.04 truffleruby-head	1m 40s
ubuntu-20.04 2.7	1m 0s
ubuntu-20.04 3.0	59s
ubuntu-20.04 3.1	59s
ubuntu-20.04 3.2	1m 6s
ubuntu-20.04 3.3	54s
ubuntu-20.04 head	59s
ubuntu-20.04 truffleruby	1m 36s
ubuntu-20.04 truffleruby-head	1m 36s
macos-latest 2.7	48s
macos-latest 3.0	36s
macos-latest 3.1	45s
macos-latest 3.2	37s
macos-latest 3.3	40s
macos-latest head	38s
macos-latest truffleruby	1m 15s
macos-latest truffleruby-head	1m 8s
windows-latest 2.7	5m 12s
windows-latest 3.0	4m 9s
windows-latest 3.1	4m 24s
windows-latest 3.2	4m 30s
windows-latest 3.3	4m 43s
windows-latest head	4m 4s
windows-latest ucrt	4m 6s
windows-latest mswin	3m 0s
	1h 25m 13s

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