build.yml: Download and install MSVC

Author: jhett12321

.github/workflows/build.yml

@@ -187,10 +187,13 @@ jobs:
     - run: git config --system --add safe.directory /__w/unified/unified
 
     - name: Setup MSVC
-      uses: ilammy/msvc-dev-cmd@v1
-      with:
-        arch: amd64
-        vsversion: 2017
+      run: |
+        Invoke-WebRequest https://aka.ms/vs/15/release/vs_buildtools.exe -OutFile vs_buildtools.exe
+        start /w vs_buildtools.exe --quiet --wait --norestart --nocache `
+        --add Microsoft.VisualStudio.Workload.VCTools `
+        --add Microsoft.VisualStudio.Component.VC.CMake.Project `
+        --add Microsoft.VisualStudio.Component.TestTools.BuildTools `
+        || IF "%ERRORLEVEL%"=="3010" EXIT 0) `
 
     - name: Setup CMake
       uses: lukka/get-cmake@latest