[MISC] Parallel patroni calls

[dragomirp]

Issue

Solution

Checklist

• I have added or updated any relevant documentation.
• I have cleaned any remaining cloud resources from my accounts.

[codecov]

Codecov Report

Attention: Patch coverage is 50.70423% with 35 lines in your changes missing coverage. Please review.

Project coverage is 69.85%. Comparing base (03222bf) to head (3586af1).
Report is 34 commits behind head on 16/edge.

Files with missing lines	Patch %	Lines
src/cluster.py	27.65%	34 Missing ⚠️
scripts/cluster_topology_observer.py	95.83%	1 Missing ⚠️

❌ Your project status has failed because the head coverage (69.85%) is below the target coverage (70.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           16/edge     #916      +/-   ##
===========================================
+ Coverage    69.83%   69.85%   +0.02%     
===========================================
  Files           14       14              
  Lines         3527     3546      +19     
  Branches       524      524              
===========================================
+ Hits          2463     2477      +14     
- Misses         937      946       +9     
+ Partials       127      123       -4     

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[dragomirp]

Superseded by #925.