Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird was updated to version 115.0.1 (bsc#1212438): - CVE-2023-3600: Fixed use-after-free in workers (bmo#1839703). - CVE-2023-3417: Fixed File Extension Spoofing using the Text Direction Override Character (bmo#1835582). Bugfixes: - changed: Added Thunderbird Supernova branding to about:dialog (bmo#1842102) - fixed: Message list was not updated when message was deleted from server outside of Thunderbird (bmo#1837041) - fixed: Scrolling behaved unexpectedly when moving to next message unread message in another folder (bmo#1841711) - fixed: Scrolling animation was unnecessarily used when switching or toggling the sort column in message list (bmo#1838522) - fixed: Attempting to delete a message and then cancelling the action still marked the message as read (bmo#793353) - fixed: Unified Toolbar could not be customized under certain tabs (bmo#1841480) - fixed: Selecting a folder with one or more subfolders and pressing enter did not expand folder (bmo#1841200) - fixed: Tooltips did not appear when hovering over folders (bmo#1839780) - fixed: Deleting large amounts of messages from Trash folder consumed excessive time and memory (bmo#1833665) - fixed: Message Summary header buttons were not keyboard accessible (bmo#1827199) - fixed: 'New' button in Message Filters dialog was not keyboard accessible (bmo#1841477) - fixed: Backing up secret keys from OpenPGP Key Manager dialog silently failed (bmo#1839415) - fixed: Various visual and UX improvements (bmo#1843172,bmo#1831422,bmo#1838360,bmo#1842319)