reduced size of default rune table by switching from unsigned long to… #611

Job	Run time
docs	4m 11s
build-and-test (macos-14, NO)	1m 18s
build-and-test (ubuntu-22.04, YES)	1m 13s
build-and-test (macos-15-intel, YES)	2m 10s
build-and-test (macos-15-intel, NO)	3m 52s
build-and-test (windows-latest, NO)	3m 27s
build-and-test (ubuntu-22.04, NO)	1m 28s
build-and-test (windows-latest, YES)	3m 59s
build-and-test (macos-14, YES)	1m 8s
	22m 46s

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