Add 'context' to mergeDeep name fields (#697)

* Add test case for changes to ruleset required_status_checks

Signed-off-by: Kyle Harding <kyle@balena.io>

* Add 'context' to mergeDeep name fields

This allows mergeDeep to correctly identify
changes to required_status_checks in rulesets

Signed-off-by: Kyle Harding <kyle@balena.io>

---------

Signed-off-by: Kyle Harding <kyle@balena.io>

Author: klutchell

lib/mergeDeep.js

@@ -1,7 +1,7 @@
 const mergeBy = require('./mergeArrayBy')
 const DeploymentConfig = require('./deploymentConfig')
 
-const NAME_FIELDS = ['name', 'username', 'actor_id', 'login', 'type', 'key_prefix']
+const NAME_FIELDS = ['name', 'username', 'actor_id', 'login', 'type', 'key_prefix', 'context']
 const NAME_USERNAME_PROPERTY = item => NAME_FIELDS.find(prop => Object.prototype.hasOwnProperty.call(item, prop))
 const GET_NAME_USERNAME_PROPERTY = item => { if (NAME_USERNAME_PROPERTY(item)) return item[NAME_USERNAME_PROPERTY(item)] }