[release-1.29] Fix hosts.toml header var

[brandond]

Proposed Changes

Resolves issue from 270f85e that prevented old hosts.toml files from being cleaned up.

Types of Changes

bugfix

Verification

See linked isse

Testing

Linked Issues

• [Release-1.29] - Custom agent/etc/containerd/certs.d/* files are deleted by k3s on startup #10840

User-Facing Change

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.41%. Comparing base (17201d4) to head (5596e10).
Report is 1 commits behind head on release-1.29.

❗ There is a different number of reports uploaded between BASE (17201d4) and HEAD (5596e10). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (17201d4)	HEAD (5596e10)
e2etests	7	6

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.29   #10873      +/-   ##
================================================
- Coverage         49.26%   43.41%   -5.85%     
================================================
  Files               178      178              
  Lines             14924    14924              
================================================
- Hits               7352     6480     -872     
- Misses             6232     7250    +1018     
+ Partials           1340     1194     -146     

Flag	Coverage Δ
e2etests	36.20% <ø> (-9.90%)	⬇️
inttests	36.81% <ø> (+17.08%)	⬆️
unittests	13.43% <ø> (ø)

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