wireshark 4.6.6

Wireshark 4.6.6 is a point release focused on stability and security fixes rather than new features. It addresses a ROHC protocol dissector crash affecting the 4.6 and 4.4 branches, corrects a MACsec global-buffer-overflow vulnerability, and includes Windows compatibility improvements such as Npcap 1.88 and repairs for Windows Server 2019-era issues. For users who analyze packet captures from various sources, this release underscores that packet analyzers themselves can be part of the attack surface. The update is recommended for anyone relying on Wireshark for network troubleshooting, security analysis, or forensic work on Windows systems.