fix password variable shadowing

[adelowo]

My bad. While the password is randomly generated, it doesn't actually get stored in
the original password variable as it is declared in a new scope with :=.

So an empty string will always be the password anytime -random-password-length is used

[codecov-io]

Codecov Report

Merging #5405 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5405      +/-   ##
==========================================
- Coverage   37.45%   37.45%   -0.01%     
==========================================
  Files         312      312              
  Lines       46510    46510              
==========================================
- Hits        17422    17420       -2     
- Misses      26597    26599       +2     
  Partials     2491     2491

Impacted Files	Coverage Δ
models/repo_list.go	63.29% <0%> (-1.27%)	⬇️

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