Added pre-release suffix for development version of default gems #384

Job	Run time
ruby-versions / Generate Ruby versions	1s
ubuntu-24.04 2.7	37s
ubuntu-24.04 3.0	10s
ubuntu-24.04 3.1	16s
ubuntu-24.04 3.2	20s
ubuntu-24.04 3.3	33s
ubuntu-24.04 debug	19s
ubuntu-24.04 head	11s
ubuntu-24.04 jruby-head	1m 3s
ubuntu-24.04 truffleruby-head	27s
ubuntu-22.04 2.7	40s
ubuntu-22.04 3.0	17s
ubuntu-22.04 3.1	15s
ubuntu-22.04 3.2	15s
ubuntu-22.04 3.3	10s
ubuntu-22.04 debug	20s
ubuntu-22.04 head	9s
ubuntu-22.04 jruby-head	1m 1s
ubuntu-22.04 truffleruby-head	31s
ubuntu-20.04 2.7	43s
ubuntu-20.04 3.0	11s
ubuntu-20.04 3.1	29s
ubuntu-20.04 3.2	14s
ubuntu-20.04 3.3	14s
ubuntu-20.04 debug	19s
ubuntu-20.04 head	10s
ubuntu-20.04 jruby-head	1m 2s
ubuntu-20.04 truffleruby-head	28s
	11m 25s

Provide feedback