Add Ruby 3.0.0 and bump 2.7 to 2.7.2 in travis

aetherknight · aetherknight · commit da3870930033 · 2021-02-12T13:36:10.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -11,7 +11,8 @@ rvm:
   # Current stable supported by Travis
   - 2.5.8
   - 2.6.6
-  - 2.7.1
+  - 2.7.2
+  - 3.0.0
   - jruby-9.1.9.0
   # Future
   - ruby-head
