Merge bitcoin/bitcoin#23956: build: use zeromq 4.3.4 in depends & fix NetBSD 10 build

6897c4bdf5 build: patch depends zeromq to fix building on NetBSD Current (fanquake)
ce6dd2f1a2 zeromq 4.3.4 (fanquake)

Pull request description:

  This is a prerequisite for #23955. It updates zeromq to the latest available version, and adds a patch, [that I've sent upstream](https://github.com/zeromq/libzmq/pull/4326), to fix building on NetBSD Current (10).

ACKs for top commit:
  hebasto:
    ACK 6897c4bdf5, I have reviewed the code and it looks OK, I agree it can be merged.

Tree-SHA512: d05d9753630faebe842e1ca70c8c4af660a38e7331a9d95e84df3a3b14564c5118ca41c4fc49fb71dfee563b63e1014e5a3f8874d652e26de59e8e188a12970e

depends/packages/zeromq.mk

@@ -1,9 +1,9 @@
 package=zeromq
-$(package)_version=4.3.1
+$(package)_version=4.3.4
 $(package)_download_path=https://github.com/zeromq/libzmq/releases/download/v$($(package)_version)/
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
-$(package)_sha256_hash=bcbabe1e2c7d0eec4ed612e10b94b112dd5f06fcefa994a0c79a45d835cd21eb
-$(package)_patches=remove_libstd_link.patch
+$(package)_sha256_hash=c593001a89f5a85dd2ddf564805deb860e02471171b3f204944857336295c3e5
+$(package)_patches=remove_libstd_link.patch netbsd_kevent_void.patch
 
 define $(package)_set_vars
   $(package)_config_opts=--without-docs --disable-shared --disable-curve --disable-curve-keygen --disable-perf
@@ -17,10 +17,12 @@ endef
 
 define $(package)_preprocess_cmds
   patch -p1 < $($(package)_patch_dir)/remove_libstd_link.patch && \
+  patch -p1 < $($(package)_patch_dir)/netbsd_kevent_void.patch && \
   cp -f $(BASEDIR)/config.guess $(BASEDIR)/config.sub config
 endef
 
 define $(package)_config_cmds
+  ./autogen.sh && \
   $($(package)_autoconf)
 endef