Merge bitcoin/bitcoin#30765: refactor: Allow `CScript`'s `operator<<`… #175

Job	Run time
Win64 native, VS 2022	2h 25m 45s
macOS 14 native, arm64, no depends, sqlite only, gui	24m 56s
test each commit	0s
ASan + LSan + UBSan + integer, no depends, USDT	1h 21m 5s
	4h 11m 46s

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