chore(hybridcloud) Handle ConnectionError when retries fail

[markstory]

Handle ConnectionError from requests when retries fail. Converting to a RpcRemoteException will give us better grouping than ConnectionError would.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (efa5a83) 81.25% compared to head (23f14ff) 81.25%.
Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #64173   +/-   ##
=======================================
  Coverage   81.25%   81.25%           
=======================================
  Files        5234     5234           
  Lines      230456   230467   +11     
  Branches    45210    45213    +3     
=======================================
+ Hits       187263   187277   +14     
+ Misses      37355    37354    -1     
+ Partials     5838     5836    -2     

Files	Coverage Δ
src/sentry/services/hybrid_cloud/rpc.py	87.74% <0.00%> (-1.18%)	⬇️

... and 15 files with indirect coverage changes

[sentry]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ RpcRemoteException: organization.send_sso_link_emails: RPC Connection failed sentry.tasks.send_sso_link_emails_control View Issue

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