ci: pass locally built functions runner image to test setups

[bacherfl]

This PR should fix the failing integration tests on the release-please branches due to the missing functions runner image
Signed-off-by: Florian Bacher [email protected]

[codecov]

Codecov Report

Merging #483 (032ab6b) into main (145a6ab) will increase coverage by 0.09%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #483      +/-   ##
==========================================
+ Coverage   59.54%   59.63%   +0.09%     
==========================================
  Files          28       28              
  Lines        2101     2101              
==========================================
+ Hits         1251     1253       +2     
+ Misses        745      744       -1     
+ Partials      105      104       -1     

Impacted Files	Coverage Δ
...or/controllers/keptnworkloadinstance/controller.go	76.80% <0.00%> (-0.52%)	⬇️
...ptnworkloadinstance/reconcile_prepostevaluation.go	90.90% <0.00%> (+9.09%)	⬆️

Flag	Coverage Δ
component-tests	50.52% <ø> (-0.25%)	⬇️
keptn-lifecycle-operator	56.64% <ø> (ø)
scheduler	4.52% <ø> (ø)

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[mowies]

LGTM