Bump ruby/setup-ruby from 1.156.0 to 1.157.0 #8

Job	Run time
Rubygems on Ubuntu (2.6)	9s
Rubygems on Ubuntu (2.7)	6s
Rubygems on Ubuntu (3.0)	8s
Rubygems on Ubuntu (3.1)	5s
Rubygems on Ubuntu (3.2)	7s
Rubygems on macOS (2.6)	13s
Rubygems on macOS (2.7)	9s
Rubygems on macOS (3.0)	10s
Rubygems on macOS (3.1)	9s
Rubygems on macOS (3.2)	11s
Rubygems on Windows (2.6)	3m 9s
Rubygems on Windows (2.7)	2m 3s
Rubygems on Windows (3.0)	2m 40s
Rubygems on Windows (3.1)	2m 8s
Rubygems on Windows (3.2)	2m 25s
Rubygems on Ubuntu (jruby-9.4)	12s
Rubygems on Ubuntu (truffleruby-22)	16s
Rubygems on Windows (mswin)	57s
	15m 17s

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