run lighthouse-ci via action [skip ci]

.github/workflows/lighthouse.yml

@@ -0,0 +1,37 @@
+name: Lighthouse
+
+on: [push, pull_request]
+
+jobs:
+  lhci:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+    # https://github.com/actions/cache/blob/master/examples.md#node---yarn
+    # https://github.com/actions/cache/issues/60
+    - name: Get yarn cache location
+      id: yarn-cache
+      run: echo "::set-output name=dir::$(yarn cache dir)"
+    - name: Cache dependencies
+      uses: actions/cache@v1
+      with:
+        path: ${{ steps.yarn-cache.outputs.dir }}
+        key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-yarn-
+    - name: Install dependencies
+      run: |
+        yarn install --no-ignore-optional --frozen-lockfile
+    # - uses: jakepartusch/wait-for-netlify-action@v1
+    #   id: wait
+    #   with:
+    #     site_name: "jakejarvis"
+    - name: Run Lighthouse CI
+      run: |
+        npm install -g @lhci/cli@0.3.x
+        lhci autorun --config=./lighthouserc.json
+      env:
+        LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}