test/openssl/test_pkey.rb: Fix pending tests in FIPS case. #804

Job	Run time
openssl-1.0.2u	3m 47s
openssl-1.1.0l	2m 26s
openssl-1.1.1v	3m 6s
openssl-3.0.10	4m 25s
openssl-3.1.2	4m 25s
libressl-3.1.5	3m 0s
libressl-3.2.7	3m 46s
libressl-3.3.6	3m 9s
libressl-3.4.3	4m 3s
libressl-3.5.3	3m 43s
libressl-3.6.3	3m 20s
libressl-3.7.3	4m 13s
libressl-3.8.0	3m 9s
openssl-3.0.10 fips	4m 19s
openssl-3.1.2 fips	5m 17s
openssl-head	7m 5s
openssl-head fips	6m 41s
ruby-versions / Generate Ruby versions	3s
ubuntu-22.04 2.7	1m 9s
ubuntu-22.04 3.0	1m 18s
ubuntu-22.04 3.1	1m 15s
ubuntu-22.04 3.2	1m 27s
ubuntu-22.04 head	1m 19s
ubuntu-22.04 truffleruby	2m 1s
ubuntu-22.04 truffleruby-head	1m 52s
ubuntu-20.04 2.7	1m 21s
ubuntu-20.04 3.0	1m 20s
ubuntu-20.04 3.1	1m 6s
ubuntu-20.04 3.2	1m 8s
ubuntu-20.04 head	1m 1s
ubuntu-20.04 truffleruby-head	2m 8s
macos-latest 2.7	1m 44s
macos-latest 3.0	2m 14s
macos-latest 3.1	1m 17s
macos-latest 3.2	2m 30s
macos-latest head	1m 35s
macos-latest truffleruby-head	4m 35s
windows-latest 2.7	8m 21s
windows-latest 3.0	6m 52s
windows-latest 3.1	7m 2s
windows-latest 3.2	5m 55s
windows-latest ucrt	4m 40s
windows-latest mswin	3m 2s
	2h 18m 9s

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