Confirm node 16 compatibility

Author: bidoubiwa

.github/workflows/pre-release-tests.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: ["12", "14"]
+        node: ["12", "14", "16"]
     name: integration-tests-against-rc (Node.js ${{ matrix.node }})
     steps:
       - uses: actions/checkout@v2

.github/workflows/tests.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: ["12", "14"]
+        node: ["12", "14", "16"]
     name: integration-tests (Node.js ${{ matrix.node }})
     steps:
       - uses: actions/checkout@v2
@@ -53,6 +53,10 @@ jobs:
 
   linter_check:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node: ["12", "14", "16"]
     name: linter-check
     steps:
       - uses: actions/checkout@v2
@@ -64,6 +68,8 @@ jobs:
           key: ${{ hashFiles('yarn.lock') }}
       - name: Setup node
         uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
       - name: Install dependencies
         run: yarn --dev
       - name: Run style check