ci: drop support old node

Scrum · Scrum · commit 2e342a590017 · 2020-08-12T10:36:51.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,4 +2,4 @@ sudo: false
 language: node_js
 node_js:
   - stable
-  - "4"
+  - "10"
