Update travis config to include php 7.4.

mikebronner · mikebronner · commit fe82cfd79225 · 2020-04-09T07:28:46.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -16,8 +16,8 @@ env:
 
 matrix:
   include:
-    - php: 7.2
     - php: 7.3
+    - php: 7.4
 
 before_script:
   - travis_retry composer self-update
