Fix sorting used in package import

[mavimo]

Use the sorting suggested for go projects for package import, fixing
files that are not compliant.

[codecov-io]

Codecov Report

Merging #122 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #122   +/-   ##
=======================================
  Coverage   64.61%   64.61%           
=======================================
  Files          24       24           
  Lines        2063     2063           
=======================================
  Hits         1333     1333           
  Misses        580      580           
  Partials      150      150

Impacted Files	Coverage Δ
handlers/handler.go	85.13% <ø> (ø)	⬆️
handlers/hook.go	62.5% <ø> (ø)	⬆️
handlers/user.go	27.27% <ø> (ø)	⬆️
workers/pipeline/git.go	69.33% <ø> (ø)	⬆️
handlers/vault.go	63.63% <ø> (ø)	⬆️

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