improve Node.js setup on GitHub Actions (#4775)

.github/workflows/build.yml

@@ -36,20 +36,5 @@ jobs:
       - name: Perform uglify, build & test
         shell: bash
         run: |
-          git clone --branch v1.6.0 --depth 1 https://github.com/jasongin/nvs.git ~/.nvs
-          while ! timeout 60 bash -c '. ~/.nvs/nvs.sh add $NODE && nvs use $NODE'; do
-            cd ~/.nvs
-            while !(git clean -xdf); do echo "'git clean' failed - retrying..."; done
-            cd -
-          done
-          . ~/.nvs/nvs.sh --version
-          nvs use $NODE
-          node --version
-          npm config set audit false
-          npm config set optional false
-          npm config set save false
-          npm config set strict-ssl false
-          npm config set update-notifier false
-          npm --version
-          while !(npm install); do echo "'npm install' failed - retrying..."; done
+          . ./test/release/install.sh
           ./test/release/$SCRIPT $OPTIONS