Reverse the network protocols ordering to de-prioritize the txnsync utilization

[tsachiherman]

Summary

In order to reduce risk on the migration to the new transaction sync, the network protocols order was flipped.
Nodes would default to use the old transaction propagation, and would use the new transaction propagation only when configured via the config.json "NetworkProtocol" flag.

Test Plan

Need to be tested on betanet.

[codecov-commenter]

Codecov Report

Merging #3153 (a685fd5) into master (ca3e877) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3153      +/-   ##
==========================================
+ Coverage   43.78%   43.80%   +0.01%     
==========================================
  Files         391      391              
  Lines       86880    86880              
==========================================
+ Hits        38041    38055      +14     
+ Misses      42806    42795      -11     
+ Partials     6033     6030       -3     

Impacted Files	Coverage Δ
network/wsNetwork.go	65.19% <ø> (+0.49%)	⬆️
ledger/internal/eval.go	69.94% <0.00%> (-0.27%)	⬇️
ledger/acctupdates.go	64.65% <0.00%> (-0.20%)	⬇️
catchup/service.go	69.82% <0.00%> (+1.24%)	⬆️
network/wsPeer.go	72.80% <0.00%> (+1.59%)	⬆️
cmd/algoh/blockWatcher.go	80.95% <0.00%> (+3.17%)	⬆️

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