fix: Do not send notifications with checkonly flag

src/ReVancedBuilder/Cleanup.py

@@ -58,7 +58,8 @@ def err_exit(msg, appstate, code=1):
 
     try:
         appstate['notification_config']
-        send_notif(appstate, error=True)
+        if appstate['flag'] != 'checkonly':
+            send_notif(appstate, error=True)
     except:
         pass
 

src/ReVancedBuilder/ReVancedBuilder.py

@@ -174,7 +174,7 @@ if (flag != 'checkonly' and not appstate['up-to-date']) or flag in ['force', 'bu
 # Update version numbers in the versions.json file
 if appstate['up-to-date'] and flag != 'buildonly':
     print('There\'s nothing to do.')
-elif flag != ['checkonly']:
+elif flag != 'checkonly':
     send_notif(appstate)
     try:
         os.rename('versions.json', 'versions-old.json')