fix: drop node 10 support (#331)

BREAKING CHANGE: this moves our `engines` support and testing matrix
forward to node12 LTS and above.

.github/workflows/ci.yml

@@ -1,54 +1,57 @@
 name: CI
 
-on: [push, pull_request]
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - latest
 
 jobs:
-  build:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+          cache: npm
+      - run: npm i --prefer-online -g npm@latest
+      - run: npm ci
+      - run: npm run lint
+
+  test:
     strategy:
+      fail-fast: false
       matrix:
-        node-version: [10.1.x, 10.x, 12.0.x, 12.x, 14.0.x, 14.x, 15.x, 16.x]
+        node-version: [12.13.0, 12.x, 14.15.0, 14.x, 16.x]
         platform:
         - os: ubuntu-latest
           shell: bash
         - os: macos-latest
           shell: bash
         - os: windows-latest
           shell: bash
+        - os: windows-latest
+          shell: cmd
         - os: windows-latest
           shell: powershell
-      fail-fast: false
-
     runs-on: ${{ matrix.platform.os }}
     defaults:
       run:
         shell: ${{ matrix.platform.shell }}
-
     steps:
-      - name: Checkout Repository
-        uses: actions/[email protected]
-
-      - name: Use Nodejs ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
-
-      - name: use latest npm
-        run: npm i -g npm@latest
-
-      - name: Install dependencies
-        run: npm install
-
-      # Run for all environments
-      - name: Run Tap Tests (no pre/post scripts, no debug checks)
-        if: matrix.platform.os != 'ubuntu-latest' || matrix.node-version != '14.x'
-        run: npm run test-only -- -c -t0
+          cache: npm
+      - run: npm i --prefer-online -g npm@latest
+      - run: npm ci
+        # TODO -t0 will need to go into npm test when we standardize on template-oss
+      - run: npm test --ignore-scripts -t0
+      - run: npm ls -a
+        # TODO these will need to go into npm test when we standardize on template-oss
         env:
           ARBORIST_DEBUG: '0'
           NODE_OPTIONS: --no-warnings
-
-      # Push coverage for specific environment
-      - name: Run Tap Tests (push coverage results, verify linting, debug checks)
-        if: matrix.platform.os == 'ubuntu-latest' && matrix.node-version == '14.x'
-        run: npm test -- -c -t0
-        env:
-          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}