fix: Use windows22-full-x64 image for Visual Studio

The windows22-base-x64 image doesn't have Visual Studio or vswhere installed.
Switch to windows22-full-x64 which includes Visual Studio for MSVC builds.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: Joe Isaacs <[email protected]>

Author: joseph-isaacs

.github/workflows/ci.yml

@@ -412,7 +412,7 @@ jobs:
               - runs-on=${{ github.run_id }}
               - family=m7i
               - cpu=8
-              - image=windows22-base-x64
+              - image=windows22-full-x64
               - tag=rust-test-windows
           - os: linux-arm64
             runner: