go/worker/compute: Do not drop valid proposals

[kostko]

Previously valid proposals could be dropped instead of being forwarded via the P2P gossip when the local node's consensus view was slightly behind even though the proposal was valid. With smaller committees and certain topologies this could result in some nodes not getting the proposals.

[codecov]

Codecov Report

Merging #5161 (e8408f9) into master (516f30a) will increase coverage by 0.10%.
The diff coverage is 74.79%.

❗ Current head e8408f9 differs from pull request most recent head 1aaa8d7. Consider uploading reports for the commit 1aaa8d7 to get more accurate results

@@            Coverage Diff             @@
##           master    #5161      +/-   ##
==========================================
+ Coverage   66.83%   66.94%   +0.10%     
==========================================
  Files         496      497       +1     
  Lines       53303    53300       -3     
==========================================
+ Hits        35626    35682      +56     
+ Misses      13339    13266      -73     
- Partials     4338     4352      +14     

Impacted Files	Coverage Δ
go/worker/compute/executor/committee/state.go	100.00% <ø> (+12.90%)	⬆️
go/worker/compute/executor/committee/p2p.go	66.66% <50.00%> (-8.34%)	⬇️
...consensus/tendermint/apps/keymanager/keymanager.go	73.79% <68.75%> (+11.74%)	⬆️
go/keymanager/api/api.go	82.85% <75.00%> (+2.21%)	⬆️
go/worker/compute/executor/committee/proposals.go	81.25% <81.25%> (ø)
go/worker/compute/executor/committee/node.go	73.62% <88.23%> (+5.30%)	⬆️
go/consensus/tendermint/abci/state/state.go	61.53% <0.00%> (-7.70%)	⬇️
go/staking/api/api.go	57.53% <0.00%> (-6.03%)	⬇️
go/storage/mkvs/lookup.go	75.00% <0.00%> (-4.17%)	⬇️
go/consensus/tendermint/full/services.go	74.81% <0.00%> (-3.71%)	⬇️
... and 41 more

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