Update .travis.yml for build config

DominikAlberski · DominikAlberski · commit 831f5d3c557d · 2024-01-02T14:45:34.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -28,3 +28,5 @@ jobs:
         bundler: false
       script: make ship
       if: (branch = master and type = push ) OR commit_message =~ /ship:docker/ OR env(SHIP_DOCKER) = true
+before_install:
+  - gem install rubygems-update -v 3.4.22
