update travis config

Author: ivan1986

.travis.yml

@@ -2,7 +2,8 @@ sudo: false
 language: php
 
 php:
-  - 5.5
+  - 7.3
+  - 7.4
   - nightly
   - hhvm
 
@@ -20,46 +21,15 @@ script: vendor/bin/phpunit --verbose
 
 matrix:
   include:
-    - php: 5.6
-      env: [SYMFONY_VERSION="2.7.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.7.*"]
-    - php: 5.6
-      env: [SYMFONY_VERSION="2.8.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.8.*"]
-    - php: 5.6
-      env: [SYMFONY_VERSION="3.0.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.0.*"]
-    - php: 5.6
-      env: [SYMFONY_VERSION="3.1.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.1.*"]
-    - php: 5.6
-      env: [SYMFONY_VERSION="3.2.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.2.*"]
-    - php: 5.6
-      env: [SYMFONY_VERSION="^3.3", SYMFONY_EVENT_DISPATCHER_VERSION="^3.3"]
-
-    - php: 7.0
-      env: [SYMFONY_VERSION="2.7.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.7.*"]
-    - php: 7.0
-      env: [SYMFONY_VERSION="2.8.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.8.*"]
-    - php: 7.0
-      env: [SYMFONY_VERSION="3.0.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.0.*"]
-    - php: 7.0
-      env: [SYMFONY_VERSION="3.1.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.1.*"]
-    - php: 7.0
-      env: [SYMFONY_VERSION="3.2.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.2.*"]
-    - php: 7.0
-      env: [SYMFONY_VERSION="^3.3", SYMFONY_EVENT_DISPATCHER_VERSION="^3.3"]
-
-    - php: 7.1
-      env: [SYMFONY_VERSION="2.7.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.7.*"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="2.8.*", SYMFONY_EVENT_DISPATCHER_VERSION="2.8.*"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="3.0.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.0.*"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="3.1.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.1.*"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="3.2.*", SYMFONY_EVENT_DISPATCHER_VERSION="3.2.*"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="^3.3", SYMFONY_EVENT_DISPATCHER_VERSION="^3.3"]
-    - php: 7.1
-      env: [SYMFONY_VERSION="^4.0", SYMFONY_EVENT_DISPATCHER_VERSION="^4.0"]
+    - php: 7.3
+      env: [SYMFONY_VERSION="^4.4", SYMFONY_EVENT_DISPATCHER_VERSION="^4.4"]
+    - php: 7.3
+      env: [SYMFONY_VERSION="^5.0", SYMFONY_EVENT_DISPATCHER_VERSION="^5.0"]
+
+    - php: 7.4
+      env: [SYMFONY_VERSION="^4.4", SYMFONY_EVENT_DISPATCHER_VERSION="^4.4"]
+    - php: 7.4
+      env: [SYMFONY_VERSION="^5.0", SYMFONY_EVENT_DISPATCHER_VERSION="^5.0"]
 
   allow_failures:
     - php: nightly