Install recent node-gyp globally

Author: s1hofmann

.github/workflows/ci.yaml

@@ -22,8 +22,12 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: ${{matrix.node}}
-      - name: Install node-gyp
+      - name: Install global node-gyp on Linux
+        if: ${{matrix.os == 'ubuntu-latest'}}
         run: sudo npm i -g node-gyp
+      - name: Install global node-gyp on non Linux
+        if: ${{matrix.os != 'ubuntu-latest'}}
+        run: npm i -g node-gyp
       - name: Run tests
         env:
           OPENCV4NODEJS_DISABLE_AUTOBUILD: 1