added php7.4 to travis

oscarotero · oscarotero · commit 6d385366f7ff · 2020-02-09T17:00:10.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,7 @@ sudo: false
 php:
   - 7.2
   - 7.3
+  - 7.4
 
 before_install:
   - composer install
