chore: raise node version used on travisCI

Jakub Freisler · Jakub Freisler · commit 68e1382ae5c4 · 2020-07-02T00:02:45.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - '8'
+  - '10'
 cache: yarn
 script:
   - yarn
