download from node-versions and fallback to node dist (#147)

* download LTS versions from releases

* support upcoiming ghes 

Co-authored-by: eric sciple <ericsciple@users.noreply.github.com>

.github/workflows/proxy.yml

@@ -0,0 +1,56 @@
+name: proxy
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'    
+  push:    
+    branches:
+      - master
+      - releases/*
+    paths-ignore:
+      - '**.md'
+      
+jobs:
+  test-proxy:
+    runs-on: ubuntu-latest
+    strategy:    
+      fail-fast: false    
+    container:
+      image: ubuntu:latest
+      options: --dns 127.0.0.1
+    services:
+      squid-proxy:
+        image: datadog/squid:latest
+        ports:
+          - 3128:3128
+    env:
+      https_proxy: http://squid-proxy:3128
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clear tool cache
+        run: rm -rf $RUNNER_TOOL_CACHE/*
+      - name: Setup node 10
+        uses: ./
+        with:
+          node-version: 10.x
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh 10
+
+  test-bypass-proxy:
+    runs-on: ubuntu-latest
+    strategy:    
+      fail-fast: false
+    env:
+      https_proxy: http://no-such-proxy:3128
+      no_proxy: api.github.com,github.com,nodejs.org,registry.npmjs.org,*.s3.amazonaws.com,s3.amazonaws.com
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clear tool cache
+        run: rm -rf $RUNNER_TOOL_CACHE/*
+      - name: Setup node 11
+        uses: ./
+        with:
+          node-version: 11
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh 11