Remove non-supported versions of Symfony of new changes

Author: GenieTim

.travis.yml

@@ -3,8 +3,9 @@ sudo: false
 language: php
 
 php:
-    - 7.1
     - 7.2
+    - 7.3
+    - 7.4
 
 matrix:
   fast_finish: true
@@ -14,5 +15,5 @@ before_script: composer install
 script: ./bin/phpunit --coverage-clover=coverage.clover
 
 after_script:
-  - if [ "$TRAVIS_PHP_VERSION" != "7.0" ]; then wget https://scrutinizer-ci.com/ocular.phar; fi
-  - if [ "$TRAVIS_PHP_VERSION" != "7.0" ]; then php ocular.phar code-coverage:upload --format=php-clover coverage.clover; fi
+  - wget https://scrutinizer-ci.com/ocular.phar;
+  - php ocular.phar code-coverage:upload --format=php-clover coverage.clover;

composer.json

@@ -22,11 +22,11 @@
     }
   ],
   "require": {
-    "php": "^7.1.3",
+    "php": "^7.2",
     "ext-curl": "*",
     "jms/serializer": "^1.0|^2.0|^3.0",
     "guzzlehttp/guzzle": "^6.0|^7.0",
-    "symfony/event-dispatcher": "^2.3|^3.0|^4.0|^5.0",
+    "symfony/event-dispatcher": "^4.0|^5.0",
     "symfony/yaml": "^2.3|^3.0|^4.0|^5.0",
     "doctrine/collections": "^1.2"
   },