policy: restore 80-byte default for datacarriersize #2

Job	Run time
Windows native, VS 2022	1h 34m 58s
macOS native, fuzz	21m 30s
Windows native, fuzz, VS 2022	44m 36s
[meta] determine runners	2s
[meta] record frozen commit	4s
test max 6 ancestor commits	-1s
macOS native	29m 6s
lint	4m 47s
macOS-cross to x86_64	51m 15s
ASan + LSan + UBSan + integer	1h 5m 25s
tidy	1h 4m 49s
Valgrind, fuzz	4h 0m 18s
32 bit ARM	45m 11s
No wallet	54m 27s
i686, no IPC	1h 11m 38s
TSan	58m 28s
fuzzer,address,undefined,integer	3h 18m 8s
MSan, fuzz	2h 5m 18s
previous releases	1h 1m 9s
MSan	1h 14m 10s
iwyu	47m 26s
Alpine (musl)	1h 27m 45s
macOS-cross to arm64	51m 49s
Windows-cross to x86_64, ucrt	1h 1m 52s
Windows-cross to x86_64, msvcrt	57m 57s
Windows, msvcrt, test cross-built	45m 6s
Windows, ucrt, test cross-built	46m 11s
	1d 4h 23m 24s

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