fix: check for exceeded backoff

[philippseith]

No description provided.

[codecov]

Codecov Report

Merging #177 (44901b4) into master (e93586f) will decrease coverage by 0.35%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #177      +/-   ##
==========================================
- Coverage   80.41%   80.06%   -0.35%     
==========================================
  Files          30       30              
  Lines        2349     2353       +4     
==========================================
- Hits         1889     1884       -5     
- Misses        333      341       +8     
- Partials      127      128       +1     

Files Changed	Coverage Δ
client.go	79.36% <0.00%> (-0.94%)	⬇️

... and 3 files with indirect coverage changes

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