CI: update microsoft/setup-msbuild to v1.1

Author: XhmikosR

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
 
       - name: Add MSBuild to PATH
-        uses: microsoft/setup-msbuild@v1
+        uses: microsoft/setup-msbuild@v1.1
 
       # TODO: cache this?
       - name: Set up nasm