chore: weekly upstream bumps (2026-08-26)

[github-actions]

Automated weekly upstream bump.

• corkscrew 2.0 -> 2.0
• massren 1.5.6 -> 1.5.7
• mylg 0.2.6 -> 0.2.6
• pdns 1.2.1 -> 1.2.1
• ptunnel-ng 1.43 -> 1.43
• suricata 6.0.0-rc1 -> 8.0.6
• wireshark 2.6.17 -> 4.7.2
• zmap 2.1.1 -> 4.4.0
• netsniff 0.6.7 -> 0.6.9

Each binary was rebuilt from source in its Dockerfile
(build//Dockerfile), stripped and UPX-packed, then
smoke-tested on x64 and ARMv7 before landing here.

Reviewer checklist:

• spot-check one binary locally (./scripts/build.sh <tool> --extract)
• sizes look sane vs previous commit