cluster: refactor v1.2.0 to hex

[corverroos]

Refactors v1.2.0 to hex instead of base58 since that is standard ETH format for bytes.

category: refactor
ticket: #848

[codecov]

Codecov Report

Merging #854 (a240cfb) into main (f3d8f46) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main     #854      +/-   ##
==========================================
- Coverage   54.79%   54.79%   -0.01%     
==========================================
  Files         113      113              
  Lines       12014    11996      -18     
==========================================
- Hits         6583     6573      -10     
+ Misses       4480     4470      -10     
- Partials      951      953       +2     

Impacted Files	Coverage Δ
cluster/definition.go	56.04% <ø> (ø)
cluster/helpers.go	72.00% <ø> (+7.48%)	⬆️
cluster/lock.go	56.48% <ø> (ø)
cluster/version.go	100.00% <ø> (ø)
cluster/distvalidator.go	71.60% <50.00%> (ø)
app/app.go	54.86% <0.00%> (-1.75%)	⬇️
core/dutydb/memory.go	70.63% <0.00%> (-1.28%)	⬇️
p2p/p2p.go	23.30% <0.00%> (-0.98%)	⬇️
dkg/transport.go	66.66% <0.00%> (+12.96%)	⬆️

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