security/strongswan: Update 6.0.7 => 6.1.0

Changelog:
https://github.com/strongswan/strongswan/releases/tag/6.1.0

PR: 298372
MFH: 2026Q3
Security: CVE-2026-78123
Security: CVE-2026-78124
Security: CVE-2026-78126
Security: CVE-2026-78127
Security: CVE-2026-78129
Security: CVE-2026-78130
Security: CVE-2026-78131
Security: CVE-2026-78132
Security: CVE-2026-78133
Security: CVE-2026-78134
Security: CVE-2026-78135
Sponsored by: Rubicon Communications, LLC ("Netgate")