Fix typo of the function ValidateBasic

[Mdaiki0730]

Description

The error message in the Line 459 of the function ValidateBasic() should be "wrong VotersHash".
I fixed it.

[codecov]

Codecov Report

Merging #504 (ebc3b99) into main (e6f57a1) will increase coverage by 0.15%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #504      +/-   ##
==========================================
+ Coverage   65.39%   65.54%   +0.15%     
==========================================
  Files         278      278              
  Lines       37995    37972      -23     
==========================================
+ Hits        24846    24890      +44     
+ Misses      11328    11280      -48     
+ Partials     1821     1802      -19     

Impacted Files	Coverage Δ
types/block.go	76.88% <100.00%> (+3.31%)	⬆️
blockchain/v0/reactor.go	66.10% <0.00%> (-3.39%)	⬇️
abci/client/socket_client.go	72.09% <0.00%> (-0.88%)	⬇️
p2p/conn/connection.go	79.80% <0.00%> (-0.20%)	⬇️
p2p/switch.go	65.90% <0.00%> (ø)
crypto/vrf/vrf_libsodium.go
crypto/vrf/vrf_r2ishiguro.go	100.00% <0.00%> (ø)
consensus/state.go	73.38% <0.00%> (+0.11%)	⬆️
light/client.go	62.05% <0.00%> (+0.44%)	⬆️
p2p/pex/pex_reactor.go	80.28% <0.00%> (+0.61%)	⬆️
... and 7 more