GitHub CI: Pass toolset version as argument to cmake

It doesn't seem like the toolset field in CMakePresets.json can
contain a macro argument like $penv{}.

Author: timoore

.github/workflows/buildWindows.yml

@@ -108,7 +108,7 @@ jobs:
           $env:VCPKG_ROOT="$env:VCPKG_INSTALLATION_ROOT"
           $env:CESIUM_TOOLSET_VERSION="${{ inputs.cmake-toolchain }}"
           if ($env:CESIUM_TOOLSET_VERSION) {
-            cmake -B build -S . -A "${{ inputs.cmake-platform }}" --preset Windows-CI-Versioned
+            cmake -B build -S . -T "version=${{ inputs.cmake-toolchain}" -A "${{ inputs.cmake-platform }}" --preset Windows-CI-Versioned
           }
           else {
             cmake -B build -S . -A "${{ inputs.cmake-platform }}" -preset Windows-CI

extern/CMakePresets.json

@@ -43,10 +43,6 @@
     {
       "name": "Windows-CI-Versioned",
       "inherits": "Windows-CI",
-      "toolset": {
-        "value": "version=$penv{CESIUM_TOOLSET_VERSION}",
-        "strategy": "set"
-      },
       "environment": {
         "CESIUM_TOOLSET_VERSION": "$penv{CESIUM_TOOLSET_VERSION}"
       }