fix: fix authenticate retry

[dead-horse]

Checklist

• npm test passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

Description of change

closes eggjs/egg#3376

[codecov]

Codecov Report

Merging #67 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master      #67   +/-   ##
=======================================
  Coverage   83.87%   83.87%           
=======================================
  Files           4        4           
  Lines          62       62           
=======================================
  Hits           52       52           
  Misses         10       10

Impacted Files	Coverage Δ
lib/loader.js	82.45% <0%> (ø)	⬆️

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[dead-horse]

4.3.1