Refresh when Invalid Session error occurs

[k-capehart]

• if an operation fails due to an invalid session, attempt to refresh the session by resubmitting credentials
• only attempt to refresh once to avoid entering an endless loop

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 98.00995% with 4 lines in your changes missing coverage. Please review.

Project coverage is 87.84%. Comparing base (fe7cb16) to head (79253d6).

Files	Patch %	Lines
auth.go	94.87%	1 Missing and 1 partial ⚠️
salesforce.go	96.61%	2 Missing ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #58      +/-   ##
==========================================
+ Coverage   86.45%   87.84%   +1.38%     
==========================================
  Files           6        6              
  Lines         997     1111     +114     
==========================================
+ Hits          862      976     +114     
  Misses         69       69              
  Partials       66       66              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[ccoVeille]

Good changes. Here are a few optional suggestions