Add Support for Multi-Auth

[mtruong-dbx]

Checklist

General Contributing

• [x] Have you read the Code of Conduct and signed the CLA?

Is This a Code Change?

• [ ] Non-code related change (markdown/git settings etc)
• [x] SDK Code Change
• [x] Example/Test Code Change

Validation

• [x] Does tox pass?
• [x] Do the tests pass?

[codecov[bot]]

Codecov Report

Merging #371 (5a587e5) into main (fa606b8) will increase coverage by 0.00%. The diff coverage is 40.00%.

@@           Coverage Diff           @@
##             main     #371   +/-   ##
=======================================
  Coverage   63.63%   63.63%           
=======================================
  Files          30       30           
  Lines       50822    50823    +1     
  Branches     3724     3724           
=======================================
+ Hits        32341    32343    +2     
  Misses      18453    18453           
+ Partials       28       27    -1     

Flag	Coverage Δ
unit	63.63% <40.00%> (+<0.01%)	:arrow_up:

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

Impacted Files	Coverage Δ
dropbox/dropbox_client.py	38.11% <40.00%> (+0.56%)	:arrow_up:

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[mtruong-dbx]

Rebase with main