Update Mozilla Location Service API key

Starting April 19th we've seen a massive increase in API calls with the old key. I'd like to rotate the key, to see if someone else is using the old key and possibly restrict its usage.

bedrock/settings/base.py

@@ -1219,7 +1219,7 @@ STATSD_PREFIX = config('STATSD_PREFIX', default='bedrock')
 
 FIREFOX_MOBILE_SYSREQ_URL = 'https://support.mozilla.org/kb/will-firefox-work-my-mobile-device'
 
-MOZILLA_LOCATION_SERVICES_KEY = 'ec4d0c4b-b9ac-4d72-9197-289160930e14'
+MOZILLA_LOCATION_SERVICES_KEY = 'a9b98c12-d9d5-4015-a2db-63536c26dc14'
 
 DEAD_MANS_SNITCH_URL = config('DEAD_MANS_SNITCH_URL', default=None)