build: Remove travis-deploy-once and use npx semantic-release

Author: okonet

.travis.yml

@@ -6,8 +6,7 @@ node_js:
   - '8'
 after_success:
   - 'bash <(curl -s https://codecov.io/bash)'
-  - yarn global add travis-deploy-once
-  - travis-deploy-once "yarn global add semantic-release@13 && semantic-release"
+  - npx semantic-release
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/