ci(travis): use `major.minor` for `semantic-release` version [skip ci]

* Automated using https://github.com/myii/ssf-formula/pull/112

.travis.yml

@@ -127,4 +127,4 @@ jobs:
         # Deprecated `skip_cleanup` can now be avoided, `cleanup: false` is by default
         edge: true
         # Run `semantic-release`
-        script: 'npx semantic-release@15'
+        script: 'npx semantic-release@15.14'