Update dependencies - v4.3.1.5

Restricting packages listed in "symfony/symfony" to "4.3.*"
Loading composer repositories with package information
Updating dependencies (including require-dev)

Prefetching 5 packages 🎶
  - Downloading (100%)

Package operations: 0 installs, 9 updates, 2 removals
  - Removing symfony/panther (v0.4.1)
  - Removing facebook/webdriver (1.7.1)
  - Updating symfony/event-dispatcher-contracts (v1.1.1 => v1.1.5): Loading from cache
  - Updating symfony/service-contracts (v1.1.2 => v1.1.5): Loading from cache
  - Updating symfony/monolog-bundle (v3.3.1 => v3.4.0): Loading from cache
  - Updating symfony/swiftmailer-bundle (v3.2.7 => v3.2.8): Loading from cache
  - Updating symfony/test-pack (v1.0.5 => v1.0.6): Loading from cache
  - Updating symfony/http-client-contracts (v1.1.3 => v1.1.5): Loading from cache
  - Updating symfony/translation-contracts (v1.1.2 => v1.1.5): Loading from cache
  - Updating twig/twig (v2.11.2 => v2.11.3): Loading from cache
  - Updating symfony/cache-contracts (v1.1.1 => v1.1.5): Loading from cache
Writing lock file
Generating autoload files

Author: Travis CI User