Support: remove Symfony 4.0 and add Symfony 4.2

.travis.yml

@@ -6,8 +6,8 @@ php:
 
 env:
     - SYMFONY_VERSION=3.4.*
-    - SYMFONY_VERSION=4.0.*
     - SYMFONY_VERSION=4.1.*
+    - SYMFONY_VERSION=4.2.*
 
 cache:
     directories:

composer.json

@@ -13,8 +13,8 @@
         "php": "^7.1",
 
         "behat/behat": "^3.4",
-        "symfony/http-kernel": "^3.4|^4.0",
-        "symfony/dotenv": "^3.4|^4.0"
+        "symfony/http-kernel": "^3.4|^4.1",
+        "symfony/dotenv": "^3.4|^4.1"
     },
     "require-dev": {
         "behat/mink": "^1.7",
@@ -23,8 +23,8 @@
         "friends-of-behat/cross-container-extension": "^1.0",
         "friends-of-behat/test-context": "^1.0",
         "phpstan/phpstan-shim": "^0.10",
-        "sylius-labs/coding-standard": "^2.0",
-        "symfony/framework-bundle": "^3.4|^4.0"
+        "sylius-labs/coding-standard": "^3.0",
+        "symfony/framework-bundle": "^3.4|^4.1"
     },
     "suggest": {
         "behat/mink-browserkit-driver": "^1.3",