build: update depends to boost-free libmultiprocess

Upstream libmultiprocess no-longer depends on Boost, it was previously
using it for boost::optional. Update to the latest version in depends so
it's package no-longer depends on Boost.

See: bitcoin-core/libmultiprocess#25.

Author: fanquake

depends/packages/libmultiprocess.mk

@@ -3,7 +3,7 @@ $(package)_version=$(native_$(package)_version)
 $(package)_download_path=$(native_$(package)_download_path)
 $(package)_file_name=$(native_$(package)_file_name)
 $(package)_sha256_hash=$(native_$(package)_sha256_hash)
-$(package)_dependencies=native_$(package) boost capnp
+$(package)_dependencies=native_$(package) capnp
 
 define $(package)_config_cmds
   $($(package)_cmake)

depends/packages/native_libmultiprocess.mk

@@ -1,8 +1,8 @@
 package=native_libmultiprocess
-$(package)_version=d576d975debdc9090bd2582f83f49c76c0061698
+$(package)_version=49dc279926fe852fc75b3da7582f146f0b805642
 $(package)_download_path=https://github.com/chaincodelabs/libmultiprocess/archive
 $(package)_file_name=$($(package)_version).tar.gz
-$(package)_sha256_hash=9f8b055c8bba755dc32fe799b67c20b91e7b13e67cadafbc54c0f1def057a370
+$(package)_sha256_hash=8d05609a1d2c9698186b1e400ac72413a519f2aa826977dba03db6ee229d5ba1
 $(package)_dependencies=native_capnp
 
 define $(package)_config_cmds