test: drop Node.js v12

.github/workflows/ci.yaml

@@ -28,7 +28,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-node@v2
         with:
-          node-version: 14
+          node-version: 16
       - name: Install deps
         run: |
           yarn --ignore-engines
@@ -63,7 +63,7 @@ jobs:
           name: target
       - uses: actions/setup-node@v2
         with:
-          node-version: 14
+          node-version: 16
       - name: Install deps
         run: |
           yarn --ignore-engines
@@ -86,7 +86,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-20.04 ]
-        node-version: [ 12, 14, 15 ]
+        node-version: [ 14, 16 ]
     name: Test (Node v${{ matrix.node-version }}, OS ${{ matrix.os }})
     runs-on: ${{ matrix.os }}
     steps:
@@ -106,10 +106,10 @@ jobs:
           yarn --ignore-engines
           yarn bootstrap
       - name: Unit test only
-        if: matrix.node-version != '14' || matrix.os != 'ubuntu-20.04'
+        if: matrix.node-version != '16' || matrix.os != 'ubuntu-20.04'
         run: yarn test:unit
       - name: Full test
-        if: matrix.node-version == '14' && matrix.os == 'ubuntu-20.04'
+        if: matrix.node-version == '16' && matrix.os == 'ubuntu-20.04'
         run: yarn test
 
   release:
@@ -129,7 +129,7 @@ jobs:
           name: target
       - uses: actions/setup-node@v2
         with:
-          node-version: 14
+          node-version: 16
 
       - name: Codeclimate
         uses: paambaati/codeclimate-action@v2.7.5