fix deployment conditional

Author: fabianvf

.travis.yml

@@ -44,7 +44,7 @@ jobs:
       on:
         tags: true
         repo: openshift/openshift-restclient-python
-        condition: "$TRAVIS_TAG =~ ^v[0-9]\\.[0-9]\\.[0-9](\\.([ab]|dev|rc)[0-9])?$"
+        condition: "$TRAVIS_TAG =~ ^v[0-9]\\.[0-9]\\.[0-9](([ab]|dev|rc)[0-9])?$"
   - stage: test-deploy
     script: python -c "import openshift ; print(openshift.__version__)"
     install: