.travis.yml in mongoid-userstamps-3.2.1 vs .travis.yml in mongoid-userstamps-3.3.0

- old
+ new

@@ -12,5 +12,6 @@
 env:
   - "MONGOID_VERSION=6.2.0"
   - "MONGOID_VERSION=6.3.0"
   - "MONGOID_VERSION=6.4.0"
   - "MONGOID_VERSION=7.0.0"
+  - "MONGOID_VERSION=7.1.0"