[release/8.0] Resolve x64 libc++ being included with linux-arm64 to browser-wasm cross-compiler #93070
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Backport of #93027 to release/8.0
/cc @directhex
Customer Impact
As-is, AOT of browser-wasm workloads on linux-arm64 will fail unless a sufficiently new OS-provided build of libc++ is installed. This patch mitigates that need.
Testing
Internal build on main in https://dev.azure.com/dnceng/internal/_build/results?buildId=2283866&view=results
Risk