Merge #31945: depends: Update libmultiprocess library to fix CI failures

01f7715 depends: Update libmultiprocess library to fix CI failure (Ryan Ofsky)

Pull request description:

  Bump libmultiprocess library to include bugfix bitcoin-core/libmultiprocess#159 which should fix intermittent CI failures reported in #31921

  This change is bumping the libmultiprocess version instead of cherry picking the bugfix. It could cherry-pick the bugfix instead, but there are reasons to prefer bumping the version:

  - Bugfix might interact with earlier PRs, and the latest version is better tested with testing done in many CI configurations in [#30975](#30975) and [#31802](#31802)

  - Even though we are in feature freeze for a release, the MULTIPROCESS=1 option is currently not enabled for release, so this PR only affect CI builds and local builds, not the release build.

  This update brings in the following changes:

  bitcoin-core/libmultiprocess#140 build: don't clobber user/superproject c++ version
  bitcoin-core/libmultiprocess#142 build: add option for external mpgen binary
  bitcoin-core/libmultiprocess#143 cleanup: initialize vars in the EventLoop constructor in the correct order
  bitcoin-core/libmultiprocess#146 cmake: Suppress compiler warnings from capnproto headers
  bitcoin-core/libmultiprocess#147 cmake: EXTERNAL_MPGEN cleanups
  bitcoin-core/libmultiprocess#148 util: fix -Wpessimizing-move warning
  bitcoin-core/libmultiprocess#145 CTest: Module must be included at the top level
  bitcoin-core/libmultiprocess#149 Avoid `-Wundef` compiler warnings
  bitcoin-core/libmultiprocess#152 refactor: Fix compiler and clang-tidy warnings
  bitcoin-core/libmultiprocess#155 scripted-diff: s/Libmultiprocess_EXTERNAL_MPGEN/MPGEN_EXECUTABLE/g
  bitcoin-core/libmultiprocess#156 refactor: Remove locale-dependent function calls
  bitcoin-core/libmultiprocess#157 refactor: Avoid using std::format
  bitcoin-core/libmultiprocess#159 bugfix: Do not lock EventLoop::mutex after EventLoop is done
  bitcoin-core/libmultiprocess#161 cmake: Avoid including CTest if not top level project
  bitcoin-core/libmultiprocess#164 Bump minimum required cmake to 3.12

  ---

  This PR is part of the [process separation project](#28722).

ACKs for top commit:
  fanquake:
    ACK 01f7715

Tree-SHA512: a6a795e4d4e13e9d35c9346f3c83d5da817f1452bdc4a9412aeadc4c652ad6e5047f4c77756570594a70ec9095cc786772a0469e306dc19bb5a508fd515c37f4

Author: fanquake

depends/packages/native_libmultiprocess.mk

@@ -1,8 +1,8 @@
 package=native_libmultiprocess
-$(package)_version=07c917f7ca910d66abc6d3873162fc9061704074
+$(package)_version=1954f7f65661d49e700c344eae0fc8092decf975
 $(package)_download_path=https://github.com/chaincodelabs/libmultiprocess/archive
 $(package)_file_name=$($(package)_version).tar.gz
-$(package)_sha256_hash=ac9db311e3b22aac3c7b7b7b3f6b7fee5cf3043ebb3c3bf412049e8b17166de8
+$(package)_sha256_hash=fc014bd74727c1d5d30b396813685012c965d079244dd07b53bc1c75c610a2cb
 $(package)_dependencies=native_capnp
 
 define $(package)_config_cmds