Refactor auth cli tests

[sahith-narahari]

Description

ref: #8711

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[sahith-narahari]

@robert-zaremba is there anything else you feel I should look at in this file, other than the repetitions addressed here

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=a87bf88221e77f8534bc0610168b6646b88bc9de

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=f1797ad0c79a0821cd2cda8b1b73709261ac0fb4

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=1e9ce95c98fdc94a5617328c158c7bdf6a52fe49

[amaury1093]

i remember there was a related issue, right? Could you link it in the OP @sahith-narahari ?

[amaury1093]

lgtm

[codecov]

Codecov Report

Merging #9018 (542119a) into master (29ff333) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 542119a differs from pull request most recent head 581e50e. Consider uploading reports for the commit 581e50e to get more accurate results

@@            Coverage Diff             @@
##           master    #9018      +/-   ##
==========================================
+ Coverage   58.95%   58.99%   +0.03%     
==========================================
  Files         574      575       +1     
  Lines       32213    32198      -15     
==========================================
+ Hits        18992    18996       +4     
+ Misses      11002    10985      -17     
+ Partials     2219     2217       -2     

Impacted Files	Coverage Δ
server/grpc/server.go	62.50% <0.00%> (-2.72%)	⬇️
x/bank/keeper/querier.go	74.13% <0.00%> (-1.73%)	⬇️
x/staking/simulation/operations.go	73.16% <0.00%> (-0.30%)	⬇️
types/address.go	64.75% <0.00%> (ø)
baseapp/grpcrouter.go	80.00% <0.00%> (ø)
types/query/pagination.go	80.00% <0.00%> (ø)
x/auth/legacy/legacytx/stdsign.go	82.81% <0.00%> (ø)
client/grpc/reflection/reflection.go	55.55% <0.00%> (ø)
x/staking/types/msg.go	55.55% <0.00%> (+0.62%)	⬆️
x/bank/client/cli/query.go	68.90% <0.00%> (+0.87%)	⬆️
... and 4 more