Fix test_provider.rb in FIPS. #1161

Job	Run time
openssl-1.0.2u	51s
openssl-1.1.0l	53s
openssl-1.1.1w	54s
openssl-3.0.14	57s
openssl-3.1.6	1m 0s
openssl-3.2.2	54s
openssl-3.3.1	55s
openssl-master	3m 39s
libressl-3.1.5	58s
libressl-3.2.7	1m 5s
libressl-3.3.6	1m 0s
libressl-3.4.3	58s
libressl-3.5.3	1m 5s
libressl-3.6.3	1m 4s
libressl-3.7.3	56s
libressl-3.8.4	1m 2s
libressl-3.9.2	1m 2s
openssl-3.0.14 with fips provider	39s
openssl-3.1.6 with fips provider	40s
openssl-3.2.2 with fips provider	41s
openssl-3.3.1 with fips provider	44s
openssl-master with fips provider	3m 23s
openssl-3.3.1 without legacy provider	56s
ruby-versions / Generate Ruby versions	2s
ubuntu-22.04 2.7	58s
ubuntu-22.04 3.0	55s
ubuntu-22.04 3.1	59s
ubuntu-22.04 3.2	57s
ubuntu-22.04 3.3	1m 2s
ubuntu-22.04 head	1m 10s
ubuntu-22.04 truffleruby	1m 40s
ubuntu-22.04 truffleruby-head	1m 43s
ubuntu-20.04 2.7	59s
ubuntu-20.04 3.0	56s
ubuntu-20.04 3.1	54s
ubuntu-20.04 3.2	56s
ubuntu-20.04 3.3	54s
ubuntu-20.04 head	1m 1s
ubuntu-20.04 truffleruby	1m 32s
ubuntu-20.04 truffleruby-head	1m 41s
macos-latest 2.7	49s
macos-latest 3.0	43s
macos-latest 3.1	38s
macos-latest 3.2	41s
macos-latest 3.3	51s
macos-latest head	56s
macos-latest truffleruby	59s
macos-latest truffleruby-head	1m 14s
windows-latest 2.7	6m 3s
windows-latest 3.0	4m 34s
windows-latest 3.1	4m 25s
windows-latest 3.2	3m 43s
windows-latest 3.3	5m 32s
windows-latest head	4m 34s
windows-latest ucrt	4m 30s
windows-latest mswin	2m 34s
	1h 27m 21s

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