Update alphanet geneis file

[egieseke]

Summary

Updated alphanet genesis file to match alphanet network.

Test Plan

Build and update alphanet network.

[algolucky]

there is also #4682 out there. I'm assuming this supersedes that?

[codecov]

Codecov Report

Merging #4721 (5ec37b2) into feature/alphanet (2dfe4fd) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@                 Coverage Diff                  @@
##           feature/alphanet    #4721      +/-   ##
====================================================
- Coverage             54.39%   54.38%   -0.01%     
====================================================
  Files                   407      407              
  Lines                 52389    52389              
====================================================
- Hits                  28495    28490       -5     
- Misses                21515    21520       +5     
  Partials               2379     2379              

Impacted Files	Coverage Δ
ledger/tracker.go	74.04% <0.00%> (-3.83%)	⬇️
cmd/tealdbg/debugger.go	72.69% <0.00%> (-0.81%)	⬇️
ledger/testing/randomAccounts.go	56.21% <0.00%> (ø)
network/wsPeer.go	68.68% <0.00%> (+0.24%)	⬆️
network/wsNetwork.go	65.62% <0.00%> (+0.27%)	⬆️
catchup/peerSelector.go	100.00% <0.00%> (+1.04%)	⬆️

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[algobarb]

LGTM

[egieseke]

#4682

Yes, I will close that PR request. Thanks.