fix race in tests

[sstanculeanu]

Reasoning behind the pull request

Proposed changes

Testing procedure

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?

[codecov]

Codecov Report

Patch coverage: 71.20% and project coverage change: -0.29 ⚠️

Comparison is base (b3641d1) 80.31% compared to head (5d52c53) 80.03%.

❗ Current head 5d52c53 differs from pull request most recent head afb6675. Consider uploading reports for the commit afb6675 to get more accurate results

Additional details and impacted files

@@                       Coverage Diff                        @@
##           feat/multiple_p2p_messengers    #5379      +/-   ##
================================================================
- Coverage                         80.31%   80.03%   -0.29%     
================================================================
  Files                               695      704       +9     
  Lines                             90470    92968    +2498     
================================================================
+ Hits                              72663    74409    +1746     
- Misses                            12638    13242     +604     
- Partials                           5169     5317     +148     

Impacted Files	Coverage Δ
cmd/assessment/benchmarks/erc20Benchmark.go	0.00% <ø> (ø)
cmd/assessment/benchmarks/wasmBenchmark.go	0.00% <ø> (ø)
factory/core/coreComponentsHandler.go	80.82% <0.00%> (-2.28%)	⬇️
genesis/process/genesisBlockCreator.go	65.76% <0.00%> (-0.36%)	⬇️
outport/notifier/eventNotifier.go	75.00% <0.00%> (-5.00%)	⬇️
process/common.go	73.92% <0.00%> (-1.08%)	⬇️
...ess/smartContract/processProxy/testProcessProxy.go	0.00% <0.00%> (ø)
process/smartContract/scrCommon/common.go	0.00% <0.00%> (ø)
vm/process/systemVM.go	60.00% <ø> (ø)
process/smartContract/hooks/blockChainHook.go	92.64% <6.25%> (-3.10%)	⬇️
... and 38 more

... and 2 files with indirect coverage changes

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