Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Update to Mozilla Thunderbird 128.12 MFSA 2025-55, bsc1244670: CVE-2025-6424: Use-after-free in FontFaceSet bmo1966423 CVE-2025-6425: The WebCompat WebExtension shipped exposed a persistent UUID bmo1717672 CVE-2025-6426: No warning wh...