.travis.yml in vnstat-ruby-3.0.4 vs .travis.yml in vnstat-ruby-3.0.5

@@ -3,7 +3,7 @@
 rvm:
  - '2.3.8'
  - '2.4.5'
  - '2.5.3'
  - '2.6.1'
-before_install: gem install bundler -v 2.0.1
+before_install: gem install bundler -v 2.0.2
 script: bundle exec rspec