ci: attempt to fix build failing on windows

Author: thetutlage

.github/workflows/test.yml

@@ -33,6 +33,11 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
+      - name: Patch node-gyp to support Visual Studio 2019
+        shell: powershell
+        run: |
+          npm install --global node-gyp@latest
+          npm prefix -g | % {npm config set node_gyp "$_\node_modules\node-gyp\bin\node-gyp.js"}
       - name: Install
         run: npm install
       - name: Run tests