Update zeromq to 4.3.1

depends/packages/zeromq.mk

@@ -14,10 +14,10 @@ define $(package)_set_vars
 endef
 else
 package=zeromq
-$(package)_version=4.2.1
-$(package)_download_path=https://github.com/zeromq/libzmq/releases/download/v$($(package)_version)
+$(package)_version=4.3.1
+$(package)_download_path=https://github.com/zeromq/libzmq/releases/download/v$($(package)_version)/
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
-$(package)_sha256_hash=27d1e82a099228ee85a7ddb2260f40830212402c605a4a10b5e5498a7e0e9d03
+$(package)_sha256_hash=bcbabe1e2c7d0eec4ed612e10b94b112dd5f06fcefa994a0c79a45d835cd21eb
 
 define $(package)_set_vars
   $(package)_config_opts=--without-documentation --disable-shared --disable-curve