Fixes some Benchmark errors

[Sriep]

Fixes

Fixes the following failing benchmark tests.

• storage.commit_connection
• storage.blobber_block_rewards
• storage.add_validator
• storage.stake_pool_lock
• storage.update_settings
• zcnsc.add-authorizer
• zcnsc.authorizer-health-check
• zcnsc.update-global-config
• storage.update_settings

Changes

Need to be mentioned in CHANGELOG.md?

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• blobber:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[service-0chain]

Manual system tests [failure] with the following config

config	value
tests skipped	FALSE
system-tests	master
gosdk	staging
zboxcli	staging
zwalletcli	staging
0chain	benchmark_fixes
blobber	staging
authorizer	staging
0box	staging
0dns	staging

[codecov-commenter]

Codecov Report

Merging #2389 (3e43292) into staging (3c38dfd) will increase coverage by 0.33%.
The diff coverage is 21.15%.

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@@             Coverage Diff             @@
##           staging    #2389      +/-   ##
===========================================
+ Coverage    28.81%   29.14%   +0.33%     
===========================================
  Files          380      380              
  Lines        63509    63512       +3     
===========================================
+ Hits         18300    18512     +212     
+ Misses       43063    42848     -215     
- Partials      2146     2152       +6     

Flag	Coverage Δ
Unit-Tests	29.14% <21.15%> (+0.33%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...et/smartcontract/storagesc/benchmark_rest_tests.go	86.77% <ø> (+86.77%)	⬆️
...ain.net/smartcontract/storagesc/benchmark_setup.go	4.12% <5.26%> (-0.33%)	⬇️
...ain.net/smartcontract/storagesc/benchmark_tests.go	76.75% <50.00%> (+0.63%)	⬆️
.../0chain.net/smartcontract/zcnsc/benchmark_tests.go	73.68% <100.00%> (ø)

... and 4 files with indirect coverage changes

[dabasov]

lgtm