chore(refactor): Use standard reconciler test framework

[irvinlim]

Extract out a common ReconcilerTest for setting up and executing reconciler tests.

[codecov]

Codecov Report

Merging #57 (1c8f331) into main (1a3e2ca) will increase coverage by 0.45%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             main      #57      +/-   ##
==========================================
+ Coverage   56.94%   57.40%   +0.45%     
==========================================
  Files         164      165       +1     
  Lines        8174     8318     +144     
==========================================
+ Hits         4655     4775     +120     
- Misses       3295     3311      +16     
- Partials      224      232       +8     

Impacted Files	Coverage Δ
pkg/runtime/testing/action.go	83.33% <60.00%> (-16.67%)	⬇️
.../execution/controllers/jobcontroller/controller.go	33.80% <75.00%> (+1.91%)	⬆️
...ution/controllers/jobqueuecontroller/controller.go	29.48% <75.00%> (+1.85%)	⬆️
pkg/runtime/testing/reconciler.go	77.50% <77.50%> (ø)
pkg/runtime/reconciler/metrics.go	68.42% <0.00%> (+26.31%)	⬆️
...kg/execution/controllers/croncontroller/metrics.go	100.00% <0.00%> (+85.71%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1a3e2ca...1c8f331. Read the comment docs.