Merge pull request #420 from Unity-Technologies/update-tested-versions

Add 6.5 to tested versions

Author: aurimasc

.yamato/upm-ci.yml

@@ -1,5 +1,6 @@
 test_editors:
   - version: trunk
+  - version: 6000.5
   - version: 6000.4
   - version: 6000.3
   - version: 6000.0