use updated reference of xgo in makefile

[techknowlogick]

as title

[codecov-io]

Codecov Report

Merging #6339 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #6339      +/-   ##
==========================================
+ Coverage   38.85%   38.87%   +0.01%     
==========================================
  Files         359      359              
  Lines       51191    51191              
==========================================
+ Hits        19892    19898       +6     
+ Misses      28432    28425       -7     
- Partials     2867     2868       +1

Impacted Files	Coverage Δ
routers/repo/view.go	42.07% <0%> (+0.99%)	⬆️
models/unit.go	14.28% <0%> (+14.28%)	⬆️

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