Update windows.yml

Author: chowyu12

.github/workflows/windows.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.18
+          go-version: 1.21
 
       - name: Build
         run: go build -v ./...