Fix fragile tests #7673

Job	Run time
Rubygems on macOS (3.3)	2m 34s
Rubygems on macOS (3.2)	1m 41s
Rubygems on Windows (3.3)	3m 45s
Rubygems on macOS (3.4)	3m 45s
Rubygems on Ubuntu (3.3)	1m 55s
Rubygems on Ubuntu (3.2)	1m 51s
Rubygems on Ubuntu (3.4)	4m 0s
Rubygems on Ubuntu (jruby)	8m 12s
Rubygems on Windows (3.2)	3m 34s
Rubygems on Ubuntu (truffleruby)	3m 40s
Rubygems on Windows (3.4)	4m 5s
All rubygems jobs pass	5s
Rubygems on Ubuntu (3.4)	4m 0s
Rubygems on macOS (3.2)	1m 41s
Rubygems on Ubuntu (3.2)	1m 51s
Rubygems on Ubuntu (3.3)	1m 55s
Rubygems on macOS (3.4)	3m 45s
Rubygems on Ubuntu (truffleruby)	3m 46s
Rubygems on Windows (3.2)	3m 34s
Rubygems on Windows (3.4)	4m 5s
Rubygems on macOS (3.3)	2m 34s
Rubygems on Ubuntu (jruby)	8m 12s
Rubygems on Windows (3.3)	3m 45s
All rubygems jobs pass	3s
	1h 18m 18s

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