go/runtime/host/protocol: Add write timeouts

[ptrus]

Fixes: #3289

[Yawning]

While I expect this sort of thing to be exceedingly rare, should it be configurable? (No is a fine answer).

[ptrus]

should it be configurable

Probably no need specially since on the runtime side the requests get queued so the write should not really get blocked by anything in case everything is fine.

[codecov]

Codecov Report

Merging #3292 into master will increase coverage by 0.09%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3292      +/-   ##
==========================================
+ Coverage   65.19%   65.28%   +0.09%     
==========================================
  Files         371      371              
  Lines       33008    33016       +8     
==========================================
+ Hits        21519    21555      +36     
+ Misses       8327     8269      -58     
- Partials     3162     3192      +30     

Impacted Files	Coverage Δ
go/runtime/host/protocol/connection.go	57.20% <0.00%> (-1.95%)	⬇️
.../consensus/tendermint/apps/epochtime_mock/state.go	70.00% <0.00%> (-10.00%)	⬇️
go/common/grpc/errors.go	79.06% <0.00%> (-9.31%)	⬇️
go/consensus/tendermint/abci/state/state.go	54.54% <0.00%> (-9.10%)	⬇️
go/runtime/tagindexer/tagindexer.go	66.27% <0.00%> (-4.66%)	⬇️
go/consensus/tendermint/full/services.go	77.11% <0.00%> (-4.24%)	⬇️
go/storage/api/root_cache.go	78.33% <0.00%> (-3.34%)	⬇️
go/storage/mkvs/iterator.go	80.57% <0.00%> (-2.88%)	⬇️
go/runtime/transaction/transaction.go	72.36% <0.00%> (-2.64%)	⬇️
go/consensus/tendermint/abci/state.go	65.51% <0.00%> (-2.07%)	⬇️
... and 25 more

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