drop ruby 2.4 support

Fivell · Fivell · commit a81ce6653c2e · 2021-11-17T10:56:41.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,6 @@ env:
     - RAILS=5.2.4.6
     - RAILS=6.0.3.7
 rvm:
-  - 2.4.10
   - 2.5.9
   - 2.6.7
   - 2.7.3
