updating tracis CI

Author: Rolando Santamaria Maso

.travis.yml

@@ -1,8 +1,9 @@
 language: node_js
 node_js:
-  - "8"
+  - "10"
+  - "12"
+  - "14"
 
-before_install:
-# package-lock.json was introduced in npm@5
-- '[[ $(node -v) =~ ^v9.*$ ]] || npm install -g npm@latest' # skipped when using node 9
-install: npm install
+script:
+  - npx standard
+  - npm run test