Add the webhooks token for the mattermost test instance.

To be modified for the definite version.

Monitor/main.py

@@ -1804,7 +1804,7 @@ def cryostat_setRefillLN2(name, date):
 @app.route('/api/FridgeWatch', methods=['POST'])
 def mattermost_FridgeWatch_webhooks():
 
-    webhooks_token = '' #To be completed
+    webhooks_token = '6wk6r4j5s7drip4fhk8y5zcwao' #To be completed
 
     request_data = request.get_json()
     if request_data is not None: