net/kafka: Update 3.9.1 => 3.9.2 (3 CVEs)

Release Announcement:
https://kafka.apache.org/blog/2026/02/21/apache-kafka-3.9.2-release-announcement/

PR: 292031
Approved by: Pavel Timofeev <timp87@gmail.com> (maintainer, timeout 2 weeks)
Security: CVE-2025-48734
Security: CVE-2025-48924
Security: CVE-2024-29371
Sponsored by: UNIS Labs
MFH: 2026Q2