[6.0] Update the swift-system tag to 1.3.0 to support Windows arm64 #73837
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(cherry picked from commit c579708)
Explanation: Update swift-system tag to 1.3.0 to enable Windows arm64 support.
Scope: Enable support for ARM64 on swift-system
Original PR: #73836
Risk: Low - The swift-system tag only pulls in a windows specific fix.
Testing: Verify the Windows toolchain for arm64 builds
Reviewer: @compnerd
main branch PR: #73836