Bump k3s-root to v0.14.0

[brandond]

Proposed Changes

Bump k3s-root to v0.14.0

Also remove the wg-add script that has been unused since v1.26 dropped the legacy wireguard backend

Types of Changes

version bump

Verification

Check versions of packaged binaries

Testing

Linked Issues

• Upgrade busybox to 3.6.1 #10452

User-Facing Change

The k3s bundled userspace has been bumped to a release based on buildroot 2024.02.3, addressing several CVEs in busybox and coreutils.

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.83%. Comparing base (4204248) to head (2261752).

❗ There is a different number of reports uploaded between BASE (4204248) and HEAD (2261752). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (4204248)	HEAD (2261752)
e2etests	7	6

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10466      +/-   ##
==========================================
- Coverage   47.16%   41.83%   -5.34%     
==========================================
  Files         177      177              
  Lines       14830    14830              
==========================================
- Hits         6995     6204     -791     
- Misses       6532     7445     +913     
+ Partials     1303     1181     -122     

Flag	Coverage Δ
e2etests	36.52% <ø> (-9.35%)	⬇️
inttests	37.07% <ø> (+17.15%)	⬆️
unittests	11.34% <ø> (ø)

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