Split from T6793: Cleanup temporary files / dirs with decrypted content
Related: T6842: Kleopatra: Clean up temporary files on windows
On each startup, all old temporary gpgol files should be deleted.
Currently old files will not be deleted.
To reproduce:
- Open encrypted mail and open attachments in outlook and reboot
- All temporary files in "C:\Users\g10\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\ODXPL3A9" are still present after reboot (files with 002 ending have been additionally opened before reboot)
- Temporary files are still present after opening and closing Outlook
