[Epic] Kubernetes Testing improvements

[mjeffryes]

Iterating on the Kubernetes code base has been slow in part due to the challenge of verifying and testing changes. There has been limited options for unittesting, and e2e tests are very slow (~1hour to run the suite). We believe a few targeted investments can improve the situation materially.

Effort: 4 eng weeks
Goal/Impact: Grow unit test coverage from %19 -> 30%, Reduce time for running a single e2e test by 10min and the whole suite by (X) min

Tasks

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1. Develop a unit test suite for Kubernetes provider #2767
   kind/task resolution/fixed +2
   
2. Unittests for provider lifecycle #2775
   kind/task resolution/fixed +2
   
3. Unittests for await logic (Creation) #2791
   area/tests kind/task resolution/fixed +3
   
4. Unittests for await logic (Read) #2798
   kind/engineering +1
   
5. Unittests for await logic (Update) #2799
   kind/engineering +1
   
6. Unittests for await logic (Delete) #2800
   kind/engineering resolution/fixed +2
   
7. Unittests for resource lifecycle: Check #2776
   kind/engineering +1
   
8. Unittests for resource lifecycle: Diff #2782
   kind/engineering +1
9. Unittests for resource lifecycle: Read #2781
   kind/engineering +1
10. Unittests for resource lifecycle: Create #2783
    kind/engineering +1
11. Unittests for resource lifecycle: Update #2780
    kind/engineering +1
12. Unittests for resource lifecycle: Delete #2779
    kind/engineering +1
13. Unittests for invokes: Invoke #2778
    kind/engineering +1
14. Uniittests for invokes: StreamInvoke #2777
    kind/engineering +1
15. Unittests for Helm sub-provider #2820
    kind/engineering resolution/duplicate +2
    
16. It's expensive to re-run integration tests #2243
    area/tests impact/quality kind/engineering resolution/fixed +4
    
17. [Helm/Release] Test coverage for core helm-release #1699
    area/helm area/tests kind/engineering +3