Update Range#step to accept Numerics and int #4322

Job	Run time
windows (windows-2019, ucrt)	1m 12s
windows (windows-2019, mswin)	1m 11s
test (master-nightly-focal, test)	2m 17s
windows (windows-2022, ucrt)	1m 13s
test (master-nightly-focal, stdlib_test)	2m 30s
windows (windows-2022, mswin)	1m 4s
test (master-nightly-focal, rubocop validate test_doc build test_generate_stdlib)	2m 22s
test (master-nightly-focal, lexer confirm_lexer)	3m 38s
test (master-nightly-focal, lexer compile)	3m 24s
test (3.2-dev-focal, test)	2m 10s
test (3.2-dev-focal, rubocop validate test_doc build test_generate_stdlib)	1m 58s
test (3.2-dev-focal, lexer confirm_lexer)	3m 28s
test (3.2-dev-focal, lexer compile)	3m 23s
test (3.1-dev-focal, test)	2m 13s
test (3.1-dev-focal, rubocop validate test_doc build test_generate_stdlib)	2m 8s
test (3.1-dev-focal, lexer confirm_lexer)	3m 34s
test (3.1-dev-focal, lexer compile)	3m 32s
test (3.0-dev-focal, test)	2m 34s
test (3.0-dev-focal, rubocop validate test_doc build test_generate_stdlib)	2m 8s
test (3.0-dev-focal, lexer confirm_lexer)	3m 32s
test (3.0-dev-focal, lexer compile)	3m 25s
	52m 56s

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