Reapply "[vcpkg scripts] Use vcpkg fetch for available tools" (#48986)#49242

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vicroms merged 2 commits intomicrosoft:masterfrom

BillyONeal:revert-revert

Jan 7, 2026

Commits on Jan 6, 2026

Reapply "[vcpkg scripts] Use vcpkg fetch for available tools" (#48986)
BillyONeal
committed
Avoid using nonexistent ${DOWNLOADS} and elevate failures in `vcpkg fetch` to being errors.
BillyONeal
committed