update slang-rhi with initial wgpu support

[skallweitNV]

• Add initial support for WebGPU using Google Dawn.

[skallweitNV]

any idea why sccache is failing on slang-rhi files? is this just a fluke?

FAILED: external/slang-rhi/CMakeFiles/slang-rhi.dir/Release/src/vulkan/vk-module.cpp.o 
sccache /Applications/Xcode_15.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -DSLANG_RHI_ENABLE_CPU=1 -DSLANG_RHI_ENABLE_CUDA=0 -DSLANG_RHI_ENABLE_D3D11=0 -DSLANG_RHI_ENABLE_D3D12=0 -DSLANG_RHI_ENABLE_METAL=1 -DSLANG_RHI_ENABLE_VULKAN=1 -DSLANG_RHI_ENABLE_WGPU=1 -DCMAKE_INTDIR=\"Release\" -I/Users/runner/work/slang/slang/include -I/Users/runner/work/slang/slang/external/slang-rhi/include -I/Users/runner/work/slang/slang/external/slang-rhi/src -I/Users/runner/work/slang/slang/external/slang-rhi/external/vulkan-headers/include -I/Users/runner/work/slang/slang/external/slang-rhi/external/metal-cpp -isystem /Users/runner/work/slang/slang/build/_deps/dawn-src/include -Wno-assume -Wno-switch -O3 -DNDEBUG -std=gnu++17 -arch arm64 -isysroot /Applications/Xcode_15.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk -fPIC -w -Werror -MD -MT external/slang-rhi/CMakeFiles/slang-rhi.dir/Release/src/vulkan/vk-module.cpp.o -MF external/slang-rhi/CMakeFiles/slang-rhi.dir/Release/src/vulkan/vk-module.cpp.o.d -o external/slang-rhi/CMakeFiles/slang-rhi.dir/Release/src/vulkan/vk-module.cpp.o -c /Users/runner/work/slang/slang/external/slang-rhi/src/vulkan/vk-module.cpp
sccache: encountered fatal error

[jkwak-work]

sccache issue is resolved after I delete the cache.
The cache probably went wrong or corrupted.

But I noticed that Linux Release is failing for real.

/usr/lib/gcc-cross/aarch64-linux-gnu/9/../../../../aarch64-linux-gnu/bin/ld: _deps/dawn-src/lib64/libdawn.so: error adding symbols: file in wrong format

[csyonghe]

It is probably trying to use x86 build for aarch64.