fix(ci): setup MSVC environment for Windows ARM64 builds (#489)

The ring crate build was failing with 'assert.h not found' error because
clang couldn't find the Windows SDK headers. This happens when building
for aarch64-pc-windows-msvc without the proper MSVC environment variables.

This fix adds the ilammy/msvc-dev-cmd action to set up the MSVC developer
command prompt environment (INCLUDE, LIB, LIBPATH, etc.) before building.
The action is configured with 'amd64_arm64' arch for cross-compiling from
x64 to ARM64.

Reference: briansmith/ring#2135

Co-authored-by: Droid Agent <droid@factory.ai>

Author: echobt

.github/workflows/release.yml

@@ -163,6 +163,12 @@ jobs:
 
       # Windows ARM64 requires clang from Visual Studio for building the ring crate
       # See: https://github.com/briansmith/ring/blob/main/BUILDING.md
+      - name: Setup MSVC environment for Windows ARM64
+        if: matrix.target == 'aarch64-pc-windows-msvc'
+        uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: amd64_arm64
+
       - name: Setup LLVM for Windows ARM64
         if: matrix.target == 'aarch64-pc-windows-msvc'
         shell: pwsh