Fix routing bundle version (#20)

Author: yoanm

.travis.yml

@@ -24,7 +24,7 @@ before_install:
   - phpenv config-rm xdebug.ini || true
 
 install:
-  - composer require symfony/http-kernel:$SYMFONY_VERSION symfony/dependency-injection:$SYMFONY_VERSION
+  - composer require symfony/http-kernel:$SYMFONY_VERSION symfony/dependency-injection:$SYMFONY_VERSION symfony/routing:$SYMFONY_VERSION
   - make build
 script:
   - make test-technical

composer.json

@@ -48,6 +48,7 @@
     "phpunit/phpunit": "^7.0 || ^8.0",
     "squizlabs/php_codesniffer": "3.*",
     "symfony/framework-bundle": "^3.0 || ^4.0",
+    "symfony/routing": "^3.0 || ^4.0",
     "yoanm/php-unit-extended": "~1.0"
   }
 }