dryrun: add gloads test

[algorandskiy]

Summary

Add test to close #3244

Test Plan

This is a test

[codecov-commenter]

Codecov Report

Merging #3664 (78e490a) into master (a6f1b9e) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3664      +/-   ##
==========================================
+ Coverage   48.11%   48.12%   +0.01%     
==========================================
  Files         381      381              
  Lines       62214    62214              
==========================================
+ Hits        29933    29943      +10     
+ Misses      28848    28839       -9     
+ Partials     3433     3432       -1     

Impacted Files	Coverage Δ
cmd/algoh/blockWatcher.go	77.77% <0.00%> (-3.18%)	⬇️
ledger/blockqueue.go	82.18% <0.00%> (-2.88%)	⬇️
util/metrics/gauge.go	68.00% <0.00%> (-2.67%)	⬇️
util/metrics/counter.go	78.57% <0.00%> (-2.39%)	⬇️
cmd/tealdbg/debugger.go	71.42% <0.00%> (-0.99%)	⬇️
network/requestTracker.go	70.25% <0.00%> (-0.87%)	⬇️
data/transactions/verify/txn.go	45.02% <0.00%> (+0.86%)	⬆️
catchup/peerSelector.go	100.00% <0.00%> (+1.04%)	⬆️
network/wsPeer.go	68.88% <0.00%> (+3.05%)	⬆️
daemon/algod/api/server/v2/dryrun.go	69.60% <0.00%> (+3.26%)	⬆️

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