Bump rubygems/configure-rubygems-credentials from 1.0.0 to 2.0.0 #660

Job	Run time
ruby-versions / Generate Ruby versions	4s
ubuntu-24.04 3.4	29s
ubuntu-24.04 head	22s
ubuntu-24.04 jruby-head	1m 21s
ubuntu-24.04 3.1	22s
ubuntu-22.04 2.7	49s
ubuntu-24.04 debug	36s
ubuntu-24.04 3.0	29s
ubuntu-24.04 3.3	32s
ubuntu-24.04 truffleruby-head	43s
ubuntu-24.04 2.7	52s
ubuntu-24.04 4.0	16s
ubuntu-24.04 3.2	34s
ubuntu-22.04 3.0	22s
ubuntu-22.04 3.4	30s
ubuntu-22.04 3.2	30s
ubuntu-22.04 4.0	24s
ubuntu-22.04 debug	32s
ubuntu-22.04 3.1	27s
ubuntu-22.04 head	21s
ubuntu-22.04 3.3	27s
ubuntu-22.04 jruby-head	1m 33s
ubuntu-22.04 truffleruby-head	40s
	13m 15s

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