Fix initial dask job state

[bstadlbauer]

TL;DR

When the dask plugin creates a DaskJob k8s resource, it will initially not have the .Status.JobStatus property set.

So

flyteplugins/go/tasks/plugins/k8s/dask/dask.go

Line 316 in de1d1d3

status := job.Status.JobStatus

will return an empty string until the DaskOperator sets the status for the first time. While this period is very brief, we've seen it happening a few times.

This PR adds support for the "" state, effectively handling it the same as being queued/initializing.

Type

• Bug Fix
• Feature
• Plugin

Are all requirements met?

• Code completed
• Smoke tested
• Unit tests added
• Code documentation added
• Any pending items have an associated Issue

[codecov]

Codecov Report

Merging #357 (6f58551) into master (06866ee) will increase coverage by 1.12%.
The diff coverage is 38.88%.

❗ Current head 6f58551 differs from pull request most recent head 1761c85. Consider uploading reports for the commit 1761c85 to get more accurate results

@@            Coverage Diff             @@
##           master     #357      +/-   ##
==========================================
+ Coverage   62.82%   63.95%   +1.12%     
==========================================
  Files         148      152       +4     
  Lines       12701    10361    -2340     
==========================================
- Hits         7980     6626    -1354     
+ Misses       4110     3123     -987     
- Partials      611      612       +1     

Flag	Coverage Δ
unittests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
go/tasks/pluginmachinery/google/config.go	0.00% <ø> (ø)
...inmachinery/google/default_token_source_factory.go	0.00% <0.00%> (ø)
...sks/pluginmachinery/google/token_source_factory.go	0.00% <0.00%> (ø)
...gke_task_workload_identity_token_source_factory.go	34.00% <34.00%> (ø)
go/tasks/plugins/k8s/dask/dask.go	85.95% <100.00%> (+3.37%)	⬆️
.../plugins/k8s/kfoperators/common/common_operator.go	65.94% <100.00%> (+5.70%)	⬆️
go/tasks/plugins/k8s/kfoperators/mpi/mpi.go	75.00% <100.00%> (+2.42%)	⬆️
...o/tasks/plugins/k8s/kfoperators/pytorch/pytorch.go	78.08% <100.00%> (+2.22%)	⬆️
...s/plugins/k8s/kfoperators/tensorflow/tensorflow.go	77.77% <100.00%> (+2.05%)	⬆️

... and 126 files with indirect coverage changes

[hamersaw]

@bstadlbauer looks great, lets merge after the lint fix!