drop support for IE 11 and classic Edge (16-18) ✌️

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
         lfs: false
     - uses: actions/setup-node@v2
       with:
-        node-version: 14.x
+        node-version: 16.x
     - name: Install LHCI
       run: npm install -g @lhci/cli
     - name: Check LHCI
@@ -72,7 +72,7 @@ jobs:
         lfs: false
     - uses: actions/setup-node@v2
       with:
-        node-version: 14.x
+        node-version: 16.x
     - name: Get Yarn cache path
       # https://github.com/actions/cache/blob/master/examples.md#node---yarn
       # https://github.com/actions/cache/issues/60