[test] Use clock in get_protocol_version with upgrade schedule

[shreyan-gupta]

This change is needed to make setting protocol version in block compatible with test loop that uses fake clock.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.68%. Comparing base (57c9796) to head (7a6e982).
Report is 9 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11640      +/-   ##
==========================================
+ Coverage   71.57%   71.68%   +0.10%     
==========================================
  Files         787      787              
  Lines      160728   161063     +335     
  Branches   160728   161063     +335     
==========================================
+ Hits       115039   115452     +413     
+ Misses      40648    40558      -90     
- Partials     5041     5053      +12     

Flag	Coverage Δ
backward-compatibility	0.23% <0.00%> (-0.01%)	⬇️
db-migration	0.23% <0.00%> (-0.01%)	⬇️
genesis-check	1.36% <0.00%> (-0.01%)	⬇️
integration-tests	37.75% <79.31%> (+0.01%)	⬆️
linux	69.05% <100.00%> (+0.05%)	⬆️
linux-nightly	71.17% <100.00%> (+0.10%)	⬆️
macos	52.60% <88.00%> (+1.62%)	⬆️
pytests	1.59% <0.00%> (-0.01%)	⬇️
sanity-checks	1.39% <0.00%> (-0.01%)	⬇️
unittests	66.25% <89.65%> (+0.11%)	⬆️
upgradability	0.28% <0.00%> (-0.01%)	⬇️

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