Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: - Mozilla Thunderbird 91.6.1 / MFSA 2022-07 (bsc#1196072) * CVE-2022-0566 (bmo#1753094) Crafted email could trigger an out-of-bounds write - Mozilla Thunderbird 91.6 / MFSA 2022-06 (bsc#1195682) * CVE-2022-22753 (bmo#1732435) Privilege Escalation to SYSTEM on Windows via Maintenance Service * CVE-2022-22754 (bmo#1750565) Extensions could have bypassed permission confirmation during update * CVE-2022-22756 (bmo#1317873) Drag and dropping an image could have resulted in the dropped object being an executable * CVE-2022-22759 (bmo#1739957) Sandboxed iframes could have executed script if the parent appended elements * CVE-2022-22760 (bmo#1740985, bmo#1748503) Cross-Origin responses could be distinguished between script and non-script content-types * CVE-2022-22761 (bmo#1745566) frame-ancestors Content Security Policy directive was not enforced for framed extension pages * CVE-2022-22763 (bmo#1740534) Script Execution during invalid object state * CVE-2022-22764 (bmo#1742682, bmo#1744165, bmo#1746545, bmo#1748210, bmo#1748279) Memory safety bugs fixed in Thunderbird 91.6