go/common/crypto: Bump ed25519 version

[kostko]

TODO

• Use proper tag of our Tendermint fork once the fork has been tagged.

[codecov]

Codecov Report

Merging #3458 into master will decrease coverage by 0.29%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3458      +/-   ##
==========================================
- Coverage   66.43%   66.13%   -0.30%     
==========================================
  Files         371      371              
  Lines       33758    33750       -8     
==========================================
- Hits        22428    22322     -106     
- Misses       8071     8161      +90     
- Partials     3259     3267       +8     

Impacted Files	Coverage Δ
go/common/crypto/signature/signature.go	43.29% <ø> (-3.80%)	⬇️
go/registry/tests/tester.go	91.12% <100.00%> (+<0.01%)	⬆️
go/consensus/tendermint/abci/state/state.go	54.54% <0.00%> (-9.10%)	⬇️
go/staking/api/grpc.go	50.39% <0.00%> (-7.88%)	⬇️
go/consensus/tendermint/epochtime/epochtime.go	85.18% <0.00%> (-7.41%)	⬇️
go/consensus/tendermint/abci/mux.go	57.86% <0.00%> (-5.06%)	⬇️
go/worker/common/committee/runtime_host.go	66.99% <0.00%> (-4.86%)	⬇️
go/consensus/tendermint/apps/staking/query.go	35.71% <0.00%> (-4.77%)	⬇️
...consensus/tendermint/apps/roothash/transactions.go	50.00% <0.00%> (-4.32%)	⬇️
go/storage/mkvs/lookup.go	72.63% <0.00%> (-4.22%)	⬇️
... and 19 more

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