chore: Update CI config (#75)

* remove `CI: true` since it's already set by the runner
* remove Node.js 13 and add 14
* update to `actions/setup-node@v2`
* remove version info
* switch to Node.js 14 for Coveralls

.github/workflows/test.yml

@@ -1,7 +1,6 @@
 name: Tests
+
 on: [push, pull_request]
-env:
-  CI: true
 
 jobs:
   run:
@@ -11,21 +10,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [8.6, 10, 12, 13]
+        node: [8.6, 10, 12, 14]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
       - name: Clone repository
         uses: actions/checkout@v2
 
       - name: Set Node.js version
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}
 
-      - run: node --version
-      - run: npm --version
-
       - name: Install npm dependencies
         run: npm install
 
@@ -35,6 +31,6 @@ jobs:
       - name: Run Coveralls
         # `master` should be a tag but they don't have one
         uses: coverallsapp/github-action@master
-        if: startsWith(matrix.os, 'ubuntu') && matrix.node == 12
+        if: startsWith(matrix.os, 'ubuntu') && matrix.node == 14
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"