Switch version in main branch to 4.0.0.dev #12422

Job	Run time
Install Rubygems on Windows (3.4)	3m 53s
Install Rubygems on Windows (jruby)	5m 0s
Install Rubygems on Windows (3.3)	3m 43s
Handling issues with a shared gem home (system)	15s
Handling gems shipped by default with RVM (3.3, 3.3.9)	10s
Install Rubygems on Ubuntu (3.2, openssl)	1m 59s
Install Rubygems on Ubuntu (3.3, openssl)	2m 11s
Install Rubygems on Windows (3.2)	4m 36s
Handling gems shipped by default with RVM (3.4, 3.4.5)	12s
Handling gems shipped by default with RVM (3.2, 3.2.9)	13s
Handling issues with a shared gem home (dev)	15s
Install Rubygems on Ubuntu (3.4, no-openssl)	1m 43s
Install Rubygems on Ubuntu (3.2, no-openssl)	1m 51s
Install Rubygems on Ubuntu (3.4, openssl)	2m 6s
Install Rubygems on Ubuntu (jruby, openssl)	3m 44s
Install Rubygems on Ubuntu (3.3, no-openssl)	1m 55s
Install Rubygems on Ubuntu (jruby, no-openssl)	3m 15s
Install Rubygems on Ubuntu (truffleruby, openssl)	3m 29s
Install Rubygems on Ubuntu (truffleruby, no-openssl)	2m 55s
All install-rubygems jobs pass	2s
	43m 27s

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