Merge bitcoin/bitcoin#34338: ci, iwyu: Fix warnings in `src/zmq` and … #3114

Job	Run time
[meta] record frozen commit	6s
[meta] determine runners	2s
matrix.job-name	0s
matrix.job-name	0s
test max 6 ancestor commits	0s
matrix.name	0s
lint	0s
Windows-cross to x86_64, ${{ matrix.crt }}	0s
Windows, ${{ matrix.crt }}, test cross-built	0s
	8s

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