[C++] Meson compilation with gcc 14.2 fails with RapidJSON error

[WillAyd]

Describe the bug, including details regarding any error messages, version, and platform.

When compiling the project with gcc 14.2, the compiler throws an error when including the RapidJSON dependency:

[160/473] Compiling C++ object src/arrow/libarrow.so.p/integration_json_integration.cc.o
FAILED: src/arrow/libarrow.so.p/integration_json_integration.cc.o 
c++ -Isrc/arrow/libarrow.so.p -Isrc/arrow -I../src/arrow -Isrc -I../src -I../thirdparty/hadoop/include -I../thirdparty/flatbuffers/include -fvisibility=hidden -fdiagnostics-color=always -fsanitize=address,undefined -fno-omit-frame-pointer -D_GLIBCXX_ASSERTIONS=1 -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -std=c++17 -O0 -g -Wno-unused-parameter -Wno-array-bounds -Wno-stringop-overflow -Wno-aggressive-loop-optimizations -Wno-nonnull -fPIC -pthread -isystem../subprojects/rapidjson-1.1.0/include -DARROW_EXPORTING -MD -MQ src/arrow/libarrow.so.p/integration_json_integration.cc.o -MF src/arrow/libarrow.so.p/integration_json_integration.cc.o.d -o src/arrow/libarrow.so.p/integration_json_integration.cc.o -c ../src/arrow/integration/json_integration.cc
In file included from ../src/arrow/integration/json_internal.h:26,
                 from ../src/arrow/integration/json_integration.cc:27:
../subprojects/rapidjson-1.1.0/include/rapidjson/document.h: In member function ‘arrow::rapidjson::GenericStringRef<CharType>& arrow::rapidjson::GenericStringRef<CharType>::operator=(const arrow::rapidjson::GenericStringRef<CharType>&)’:
../subprojects/rapidjson-1.1.0/include/rapidjson/document.h:319:82: error: assignment of read-only member ‘arrow::rapidjson::GenericStringRef<CharType>::length’
  319 |     GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; length = rhs.length; }
      |                                                                           ~~~~~~~^~~~~~~~~~~~

This looks to be a long standing issue upstream (see Tencent/rapidjson#2277) that was fixed some time ago, but RapidJSON has not had a release in quite some time.

It looks like the CMake version uses git hash 232389d4f1012dddec4ef84861face2d2ba85709 so we should probably bump the Meson configuration to use that as well

Component(s)

C++