ci: upgrade node environments (#291)

Author: nguyentoanit

.github/workflows/danger.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install
         run: npm ci

.github/workflows/release.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install
         run: npm ci

.github/workflows/test.yml

@@ -15,8 +15,8 @@ jobs:
     strategy:
       matrix:
         node:
-          - 10
-          - 12
+          - 14
+          - 16
         os:
           - ubuntu-latest
           # - macOS-latest