Fix test_provider.rb in FIPS. #1164

Job	Run time
openssl-1.0.2u	56s
openssl-1.1.0l	51s
openssl-1.1.1w	56s
openssl-3.0.14	57s
openssl-3.1.6	55s
openssl-3.2.2	59s
openssl-3.3.1	59s
openssl-master	3m 49s
libressl-3.1.5	52s
libressl-3.2.7	59s
libressl-3.3.6	1m 4s
libressl-3.4.3	57s
libressl-3.5.3	1m 6s
libressl-3.6.3	1m 3s
libressl-3.7.3	58s
libressl-3.8.4	56s
libressl-3.9.2	57s
openssl-3.0.14 with fips provider	37s
openssl-3.1.6 with fips provider	37s
openssl-3.2.2 with fips provider	38s
openssl-3.3.1 with fips provider	40s
openssl-master with fips provider	3m 28s
openssl-3.3.1 without legacy provider	56s
ruby-versions / Generate Ruby versions	3s
ubuntu-22.04 2.7	1m 2s
ubuntu-22.04 3.0	55s
ubuntu-22.04 3.1	1m 6s
ubuntu-22.04 3.2	1m 0s
ubuntu-22.04 3.3	58s
ubuntu-22.04 head	1m 1s
ubuntu-22.04 truffleruby	1m 31s
ubuntu-22.04 truffleruby-head	1m 47s
ubuntu-20.04 2.7	57s
ubuntu-20.04 3.0	55s
ubuntu-20.04 3.1	55s
ubuntu-20.04 3.2	58s
ubuntu-20.04 3.3	56s
ubuntu-20.04 head	59s
ubuntu-20.04 truffleruby	1m 29s
ubuntu-20.04 truffleruby-head	1m 37s
macos-latest 2.7	57s
macos-latest 3.0	37s
macos-latest 3.1	36s
macos-latest 3.2	37s
macos-latest 3.3	38s
macos-latest head	37s
macos-latest truffleruby	57s
macos-latest truffleruby-head	1m 0s
windows-latest 2.7	4m 33s
windows-latest 3.0	4m 37s
windows-latest 3.1	4m 5s
windows-latest 3.2	4m 4s
windows-latest 3.3	6m 21s
windows-latest head	3m 55s
windows-latest ucrt	3m 41s
windows-latest mswin	3m 5s
	1h 24m 39s

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