Add experimental flag to keep connections alive between invocations.

[peterallenwebb]

Resolves #

Problem

Solution

Checklist

• I have read the contributing guide and understand what's expected of me.
• I have run this code in development, and it appears to resolve the stated issue.
• This PR includes tests, or tests are not required or relevant for this PR.
• This PR has no interface changes (e.g., macros, CLI, logs, JSON artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX.
• This PR includes type annotations for new and modified functions.

[github-actions]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.21%. Comparing base (1fe9c1b) to head (f7d888f).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10797      +/-   ##
==========================================
+ Coverage   89.14%   89.21%   +0.07%     
==========================================
  Files         182      183       +1     
  Lines       23297    23385      +88     
==========================================
+ Hits        20768    20864      +96     
+ Misses       2529     2521       -8     

Flag	Coverage Δ
integration	86.52% <100.00%> (+0.08%)	⬆️
unit	62.18% <100.00%> (-0.03%)	⬇️

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

Components	Coverage Δ
Unit Tests	62.18% <100.00%> (-0.03%)	⬇️
Integration Tests	86.52% <100.00%> (+0.08%)	⬆️