Simulate ARM9 RAM starvation to fix DSi PictoChat - #2744

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache/restore@v4, actions/cache/save@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

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The following variables are not used in CMakeLists.txt:

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[LogCollection][Warn]File not found:'-- Loading CMake variables from D:/a/melonDS/melonDS/vcpkg/buildtrees/openssl/cmake-get-vars_C_CXX-x64-windows-static-release.cmake.log'.