Update multus to v4.1.2

[mgfritch]

Also update the hardened-cni-plugins for cilium, flannel and multus to v1.5.1-build20241009

Depends on:

• Update Multus version to v4.1.2-build20241009 rke2-charts#537
• Update hardened-cni-plugins to v1.5.1-build20241009 rke2-charts#539

Linked Issue: #6980

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.11%. Comparing base (034466c) to head (42131ee).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6981   +/-   ##
=======================================
  Coverage   25.11%   25.11%           
=======================================
  Files          33       33           
  Lines        2839     2839           
=======================================
  Hits          713      713           
  Misses       2079     2079           
  Partials       47       47           

Flag	Coverage Δ
inttests	9.54% <ø> (ø)
unittests	17.75% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.