CI: Remove v prefix from version tag constraint

Turbo87 · Turbo87 · commit ab8ea9a5625e · 2019-07-12T13:43:43.000+02:00
Version tags in this project don't have that prefix 🙈
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 branches:
   only:
     - master
-    - /^v\d+\.\d+\.\d+/  # npm version tags
+    - /^\d+\.\d+\.\d+/  # npm version tags
 
 language: node_js
 node_js:
