Bump version number to 4.0.0.pre #1633

Job	Run time
ubuntu-24.04-ppc64le	1m 35s
ubuntu-24.04-s390x	1m 36s
ruby-versions / Generate Ruby versions	5s
openssl-3.3.5	1m 13s
openssl-3.2.6	1m 17s
openssl-3.0.18	1m 12s
openssl-3.5.4	1m 23s
libressl-4.0.1	58s
libressl-3.9.2	1m 3s
openssl-1.1.1w	58s
openssl-3.1.8	1m 16s
openssl-master	3m 51s
openssl-3.6.0	1m 20s
openssl-3.5.4 without legacy provider	1m 15s
aws-lc-latest	3m 38s
libressl-4.1.1	1m 1s
openssl-3.4.3	1m 12s
ubuntu-latest 3.1	56s
ubuntu-latest 3.2	1m 1s
ubuntu-latest 2.7	58s
macos-latest 2.7	1m 4s
ubuntu-latest 3.4	1m 0s
ubuntu-latest 3.3	57s
macos-latest 3.1	40s
ubuntu-latest head	59s
macos-latest 3.0	40s
macos-latest 3.4	46s
ubuntu-latest truffleruby	1m 45s
ubuntu-latest 3.0	52s
macos-latest 3.3	46s
macos-latest 3.2	59s
ubuntu-latest truffleruby-head	1m 46s
macos-latest truffleruby-head	1m 9s
windows-latest 3.0	3m 11s
macos-latest truffleruby	1m 39s
windows-latest 3.2	3m 11s
macos-latest head	52s
windows-latest 3.1	3m 31s
windows-latest 3.4	2m 48s
windows-latest 3.3	3m 22s
windows-latest head	3m 3s
windows-latest 2.7	3m 33s
windows-latest mswin	2m 12s
windows-latest ucrt	2m 49s
	1h 11m 22s

Provide feedback