chore(sogo-ealarms-notify): properly close all DB channels

This prevent MySQL from logging an error (Aborted connection to db).

Tools/SOGoEAlarmsNotifier.m

@@ -53,6 +53,9 @@
 #import <Appointments/SOGoAptMailReminder.h>
 #import <WEExtensions/WEResourceManager.h>
 
+#import <GDLContentStore/GCSChannelManager.h>
+#import <GDLContentStore/GCSFolderManager.h>
+
 #import "SOGoEAlarmsNotifier.h"
 
 @implementation SOGoEAlarmsNotifier
@@ -225,6 +228,8 @@
 
 - (BOOL) run
 {
+  GCSChannelManager *cm;
+  GCSFolderManager *fm;
   NSArray *arguments, *alarms;
   NSCalendarDate *startDate, *toDate;
   NSDictionary *d;
@@ -270,7 +275,7 @@
                                                       hour: 0 minute: -5
                                                     second: 0]
                                    toDate: toDate
-                               withMetadata: metadata];
+                             withMetadata: metadata];
 
   max = [alarms count];
   for (count = 0; count < max; count++)
@@ -292,6 +297,10 @@
 		     nameInContainer: [[d objectForKey: @"record"] objectForKey: @"c_name"]];
     }
 
+  // GCSFolder has opened a channel; close it before ending the process
+  fm = [GCSFolderManager defaultFolderManager];
+  cm = [fm channelManager];
+  [cm releaseAllChannels];
 
   return YES;
 }