NETOBSERV-1915 allow unbounded variables in functions

[jpinsonneau]

Description

Fix case where plugin complains about missing NETOBSERV_AGENT_IMAGE environment variable.

Dependencies

n/a

Checklist

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[jpinsonneau]

Merging this upstream to give a try on a new release

[openshift-ci]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.08%. Comparing base (135a110) to head (334306a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #94   +/-   ##
=======================================
  Coverage   25.08%   25.08%           
=======================================
  Files           8        8           
  Lines        1148     1148           
=======================================
  Hits          288      288           
  Misses        839      839           
  Partials       21       21           

Flag	Coverage Δ
unittests	25.08% <ø> (ø)

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