Support ArrayNode subNode timeouts

[hamersaw]

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• I updated the documentation accordingly.
• All new and existing tests passed.
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[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 20 lines in your changes missing coverage. Please review.

Project coverage is 37.08%. Comparing base (ab04192) to head (f34fb8f).

Files with missing lines	Patch %	Lines
...ytepropeller/pkg/controller/nodes/array/handler.go	52.94%	6 Missing and 2 partials ⚠️
...ler/pkg/apis/flyteworkflow/v1alpha1/node_status.go	0.00%	7 Missing ⚠️
...opeller/pkg/controller/nodes/node_state_manager.go	20.00%	4 Missing ⚠️
...lytepropeller/pkg/controller/nodes/transformers.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6054      +/-   ##
==========================================
- Coverage   37.08%   37.08%   -0.01%     
==========================================
  Files        1318     1318              
  Lines      132284   132312      +28     
==========================================
+ Hits        49062    49068       +6     
- Misses      78950    78971      +21     
- Partials     4272     4273       +1     

Flag	Coverage Δ
unittests-datacatalog	51.58% <ø> (ø)
unittests-flyteadmin	54.10% <ø> (ø)
unittests-flytecopilot	30.99% <ø> (ø)
unittests-flytectl	62.29% <ø> (-0.05%)	⬇️
unittests-flyteidl	7.23% <ø> (ø)
unittests-flyteplugins	53.73% <ø> (ø)
unittests-flytepropeller	42.61% <33.33%> (-0.02%)	⬇️
unittests-flytestdlib	57.57% <ø> (+0.03%)	⬆️

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