fix: refresh node metadata on stale nodes

[shanduur]

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Sometimes the metadata might become stale when the node itself is not removed/added or even updated. We need to trigger the update to prevent stale metadata on the nodes.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 29 lines in your changes missing coverage. Please review.

Project coverage is 55.64%. Comparing base (af045d1) to head (3223a06).
Report is 1 commits behind head on main.

Files	Patch %	Lines
cloud/linode/node_controller.go	0.00%	29 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #225      +/-   ##
==========================================
- Coverage   56.05%   55.64%   -0.42%     
==========================================
  Files          12       12              
  Lines        1873     1887      +14     
==========================================
  Hits         1050     1050              
- Misses        680      694      +14     
  Partials      143      143              

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