refactor: small refactor in threads for waiting Flow readiness

[JoanFM]

Goals:
Task from rich local in the thread stack

[codecov]

Codecov Report

Merging #5621 (0109d57) into master (13f2d1c) will decrease coverage by 7.02%.
The diff coverage is 89.70%.

❗ Current head 0109d57 differs from pull request most recent head 0098bb5. Consider uploading reports for the commit 0098bb5 to get more accurate results

@@            Coverage Diff             @@
##           master    #5621      +/-   ##
==========================================
- Coverage   87.87%   80.86%   -7.02%     
==========================================
  Files         124      124              
  Lines       10113    10121       +8     
==========================================
- Hits         8887     8184     -703     
- Misses       1226     1937     +711     

Flag	Coverage Δ
jina	80.86% <89.70%> (-7.02%)	⬇️

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

Impacted Files	Coverage Δ
jina/serve/executors/__init__.py	80.83% <ø> (-8.34%)	⬇️
jina/helper.py	59.59% <50.00%> (-21.34%)	⬇️
jina/orchestrate/flow/base.py	86.62% <80.00%> (-1.59%)	⬇️
jina/orchestrate/deployments/__init__.py	81.28% <87.87%> (-8.50%)	⬇️
jina/jaml/parsers/flow/v1.py	100.00% <100.00%> (ø)
jina/orchestrate/deployments/config/k8s.py	99.37% <100.00%> (-0.63%)	⬇️
...deployments/config/k8slib/kubernetes_deployment.py	57.33% <100.00%> (-8.01%)	⬇️
jina/orchestrate/orchestrator.py	96.66% <100.00%> (+0.83%)	⬆️
jina/parsers/__init__.py	98.05% <100.00%> (ø)
jina/parsers/orchestrate/base.py	100.00% <100.00%> (ø)
... and 63 more

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