Install go get outside cli directory

[VijayanB]

go get inside cli will update the go.mod, since this is not part of code dependencies,
install goimports outside scope of cli.

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[codecov]

Codecov Report

Merging #216 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #216      +/-   ##
============================================
+ Coverage     72.40%   72.41%   +0.01%     
- Complexity     1289     1290       +1     
============================================
  Files           139      139              
  Lines          6073     6073              
  Branches        469      469              
============================================
+ Hits           4397     4398       +1     
  Misses         1464     1464              
+ Partials        212      211       -1     

Flag	Coverage Δ	Complexity Δ
#cli	80.30% <ø> (ø)	0.00 <ø> (ø)
#plugin	71.36% <ø> (+0.01%)	1290.00 <ø> (+1.00)

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Impacted Files	Coverage Δ	Complexity Δ
cli/internal/controller/ad/ad.go	77.38% <0.00%> (ø)	0.00% <0.00%> (ø%)
...sticsearch/ad/indices/AnomalyDetectionIndices.java	62.31% <0.00%> (+0.72%)	24.00% <0.00%> (+1.00%)