feature: remove support for nodejs 8.x and 10.x

.github/workflows/node.js.yml

@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [ 8.x, 10.x, 12.x, 14.x ]
+        node-version: [ 12.x, 14.x ]
 
     steps:
       - uses: actions/checkout@v2