Send connection keepalive pings once per minute to prevent stream termination while awaiting long-running jobs

[hoisinberg]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.38%. Comparing base (96c2004) to head (0611640).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7755      +/-   ##
==========================================
- Coverage   99.38%   99.38%   -0.01%     
==========================================
  Files        1090     1090              
  Lines       98248    98248              
==========================================
- Hits        97643    97642       -1     
- Misses        605      606       +1     

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