chore: replace retry crate with backon

[tottoto]

Replaces retry crate with backon. Since backon is used in the dependency opendal as well, this could reduces dependencies.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.48%. Comparing base (892bbbf) to head (53bf4a9).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2447      +/-   ##
==========================================
+ Coverage   71.46%   71.48%   +0.01%     
==========================================
  Files          65       65              
  Lines       36270    36270              
==========================================
+ Hits        25919    25926       +7     
+ Misses      10351    10344       -7     

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