Test jruby against Redis server 5.0

Author: byroot

.travis.yml

@@ -45,11 +45,7 @@ matrix:
     - rvm: jruby-9.1.17.0
   include:
     - rvm: jruby-9.1.17.0
-      env: DRIVER=ruby REDIS_BRANCH=3.0 LOW_TIMEOUT=0.3
-    - rvm: jruby-9.1.17.0
-      env: DRIVER=ruby REDIS_BRANCH=3.2 LOW_TIMEOUT=0.3
-    - rvm: jruby-9.1.17.0
-      env: DRIVER=ruby REDIS_BRANCH=4.0 LOW_TIMEOUT=0.3
+      env: DRIVER=ruby REDIS_BRANCH=5.0 LOW_TIMEOUT=0.3
 
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