refactor: cleanup test receiver

[alexanderbez]

Cleanup receiver name in app tests

closes: #1280

[codecov-commenter]

Codecov Report

Merging #1374 (15a3389) into main (f56fbe5) will decrease coverage by 1.44%.
The diff coverage is 2.72%.

@@            Coverage Diff             @@
##             main    #1374      +/-   ##
==========================================
- Coverage   19.82%   18.38%   -1.45%     
==========================================
  Files         202      213      +11     
  Lines       27685    30172    +2487     
==========================================
+ Hits         5489     5547      +58     
- Misses      21175    23599    +2424     
- Partials     1021     1026       +5     

Impacted Files	Coverage Δ
x/gamm/pool-models/stableswap/amm.go	43.28% <0.00%> (-12.49%)	⬇️
x/gamm/pool-models/stableswap/msgs.go	0.00% <0.00%> (ø)
x/gamm/pool-models/stableswap/pool.go	0.00% <0.00%> (ø)
x/gamm/pool-models/stableswap/stableswap_pool.go	0.00% <0.00%> (ø)
x/gamm/types/pool.go	0.00% <ø> (ø)
x/incentives/keeper/distribute.go	61.00% <0.00%> (ø)
x/incentives/keeper/hooks.go	50.00% <0.00%> (ø)
x/lockup/client/cli/query.go	51.99% <0.00%> (-3.00%)	⬇️
x/lockup/keeper/grpc_query.go	50.40% <0.00%> (-4.47%)	⬇️
x/lockup/keeper/store.go	84.95% <0.00%> (-2.32%)	⬇️
... and 18 more

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