Ruby

Update `String`'s definitions #4122

Job	Run time
windows (windows-2019, ucrt)	1m 6s
windows (windows-2019, mswin)	1m 1s
test (master-nightly-focal, test)	2m 19s
test (master-nightly-focal, stdlib_test)	2m 27s
windows (windows-2022, ucrt)	1m 13s
windows (windows-2022, mswin)	1m 54s
test (master-nightly-focal, rubocop validate test_doc build test_generate_stdlib)	2m 12s
test (master-nightly-focal, lexer confirm_lexer)	3m 13s
test (master-nightly-focal, lexer compile)	3m 15s
test (3.2-dev-focal, test)	1m 57s
test (3.2-dev-focal, stdlib_test)	1m 55s
test (3.2-dev-focal, rubocop validate test_doc build test_generate_stdlib)	2m 4s
test (3.2-dev-focal, lexer confirm_lexer)	3m 20s
test (3.2-dev-focal, lexer compile)	3m 12s
test (3.1-dev-focal, test)	2m 35s
test (3.1-dev-focal, rubocop validate test_doc build test_generate_stdlib)	2m 8s
test (3.1-dev-focal, lexer confirm_lexer)	3m 47s
test (3.1-dev-focal, lexer compile)	3m 24s
test (3.0-dev-focal, test)	2m 18s
test (3.0-dev-focal, rubocop validate test_doc build test_generate_stdlib)	2m 8s
test (3.0-dev-focal, lexer confirm_lexer)	3m 15s
test (3.0-dev-focal, lexer compile)	3m 17s
	54m 0s

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