Fix isight timestamp format should be in the following format: `Tue Apr 24 2018 16:20:38 GMT` and not: `Tue Apr 24 2018 16:20:38 GMT+0000 (UTC)`
Fix isight timestamp format
should be in the following format:
`Tue Apr 24 2018 16:20:38 GMT`
and not:
`Tue Apr 24 2018 16:20:38 GMT+0000 (UTC)`

fixes https://github.com/demisto/etc/issues/11509

demisto/content,demisto/content,VirusTotal/content,VirusTotal/content,demisto/content,demisto/content,VirusTotal/content,VirusTotal/content