Merge pull request thephpleague#14 from thephpleague/symfony-4-3

Run CI against Symfony 4.3

Author: tgalopin

.travis.yml

@@ -9,7 +9,7 @@ matrix:
         - php: 7.2
           env: SYMFONY_VERSION="4.2.*" CS_FIXER=1
         - php: 7.3
-          env: SYMFONY_VERSION="4.2.*"
+          env: SYMFONY_VERSION="4.3.*"
     fast_finish: true
 
 cache:
@@ -18,8 +18,8 @@ cache:
 
 before_script:
     - composer self-update
-    - composer require --no-update symfony/framework-bundle=$SYMFONY_VERSION
-    - composer require --no-update --dev symfony/form=$SYMFONY_VERSION symfony/twig-bundle=$SYMFONY_VERSION
+    - composer require --no-update symfony/config=$SYMFONY_VERSION symfony/http-kernel=$SYMFONY_VERSION symfony/dependency-injection=$SYMFONY_VERSION symfony/options-resolver=$SYMFONY_VERSION
+    - composer require --no-update --dev symfony/framework-bundle=$SYMFONY_VERSION symfony/yaml=$SYMFONY_VERSION
     - composer update $COMPOSER_FLAGS --prefer-dist
 
 script: