Merge bitcoin/bitcoin#30765: refactor: Allow `CScript`'s `operator<<`… #291

Job	Run time
ASan + LSan + UBSan + integer, no depends, USDT	1h 17m 6s
macOS 14 native, arm64, no depends, sqlite only, gui	30m 58s
test each commit	0s
Win64 native, VS 2022	2h 26m 31s
	4h 14m 35s

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