Improve test/go target to test go modules

[Warashi]

What this PR does:

as title

Why we need it:

To run all tests across the go modules

Which issue(s) this PR fixes:

Part of #5867

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 24.40%. Comparing base (1e1e9c4) to head (88d6e84).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5882   +/-   ##
=======================================
  Coverage   24.39%   24.40%           
=======================================
  Files         444      444           
  Lines       48731    48731           
=======================================
+ Hits        11889    11893    +4     
+ Misses      35875    35872    -3     
+ Partials      967      966    -1     

Flag	Coverage Δ
.	24.40% <ø> (?)

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