Fix the commit reference of the latest local_moodlecheck plugin

The travis-ci is still using the old version of the local_moodlecheck
plugin. As a result, I am seeing some false failures such as "Invalid
inline phpdocs tag @see found" which I am not getting when using the
latest version locally.

I suspect that the commit c006b90 only raised the "version" without also
setting the right "reference".

Author: mudrd8mz

composer.json

@@ -64,11 +64,11 @@
       "type": "package",
       "package": {
         "name": "moodlehq/moodle-local_moodlecheck",
-        "version": "1.0.1",
+        "version": "1.0.2",
         "source": {
           "url": "https://github.com/moodlehq/moodle-local_moodlecheck.git",
           "type": "git",
-          "reference": "272187600c71a7833086c48f6ea40e7287074a7b"
+          "reference": "ceab6b90ff9f4680468bd6720b2add290b608820"
         }
       }
     }

composer.lock

@@ -11,6 +11,7 @@ The format of this change log follows the advice given at [Keep a CHANGELOG](htt
 ## [Unreleased]
 ### Changed
 - Updated [.travis.dist.yml] to use Postgresql 9.6 (Moodle 3.10 new requirement).
+- Updated composer.json to use the latest version of `local_moodlecheck` plugin.
 
 ### Fixed
 - `moodle-plugin-ci grunt` now also checks `*.js.map` files.