[AUTO-CHERRYPICK] [AutoPR- Security] Patch flannel for CVE-2026-73500 [HIGH] - branch 3.0-dev - #18493

[AUTO-CHERRYPICK] [AutoPR- Security] Patch flannel for CVE-2026-73500 [HIGH] - branch 3.0-dev#18493

azurelinux-ci-jwt-app[bot] wants to merge 4 commits into

3.0-devmicrosoft/azurelinux:3.0-devfrom

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