Revert "No need to download node for win-arm64???"

This reverts commit a894ca1.

Author: sergiou87

.github/workflows/ci.yml

@@ -81,6 +81,13 @@ jobs:
         with:
           node-version: ${{ matrix.node }}
           cache: yarn
+
+      # This step can be removed as soon as official Windows arm64 builds are published:
+      # https://github.com/nodejs/build/issues/2450#issuecomment-705853342
+      - name: Get NodeJS node-gyp lib for Windows arm64
+        if: ${{ matrix.os == 'windows-2019' && matrix.arch == 'arm64' }}
+        run: .\script\download-nodejs-win-arm64.ps1 ${{ matrix.node }}
+
       - name: Install and build dependencies
         run: yarn
         env: