Enabled full test suite on Renovate PRs

no issue

- only regression tests were being run on Renovate PRs, which allowed
  bad updates to go through
- this commit enables the full test suite

Author: daniellockyer

.travis.yml

@@ -21,9 +21,7 @@ before_script:
 - if [ $DB == "mysql" ]; then mysql -e 'create database ghost_testing'; fi
 - if [ "$DB" == "sqlite3" ]; then yarn add --force sqlite3; fi
 script: |
-  if [[ "$TRAVIS_PULL_REQUEST_BRANCH" =~ ^renovate || "$TRAVIS_EVENT_TYPE" == "cron" ]]; then
-    yarn ci:regression
-  elif [[ "$TRAVIS_PULL_REQUEST" == "false" ]]; then
+  if [[ "$TRAVIS_PULL_REQUEST_BRANCH" =~ ^renovate || "$TRAVIS_PULL_REQUEST" == "false" ]]; then
     grunt test-all --verbose
   else
     yarn ci