worker/storage: Fix heartbeat stall

[jberci]

No description provided.

[codecov]

Codecov Report

Merging #3899 (c1eae4f) into master (a0dd52d) will increase coverage by 0.09%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3899      +/-   ##
==========================================
+ Coverage   67.04%   67.14%   +0.09%     
==========================================
  Files         404      404              
  Lines       41448    41449       +1     
==========================================
+ Hits        27788    27829      +41     
+ Misses       9689     9665      -24     
+ Partials     3971     3955      -16     

Impacted Files	Coverage Δ
go/worker/storage/committee/node.go	79.14% <ø> (-0.07%)	⬇️
go/worker/storage/committee/utils.go	100.00% <100.00%> (ø)
go/oasis-node/cmd/common/metrics/disk.go	65.38% <0.00%> (-19.24%)	⬇️
go/oasis-node/cmd/common/metrics/resource.go	78.94% <0.00%> (-10.53%)	⬇️
go/consensus/tendermint/full/services.go	75.83% <0.00%> (-8.34%)	⬇️
go/keymanager/client/client.go	79.82% <0.00%> (-3.51%)	⬇️
go/runtime/host/sgx/sgx.go	71.42% <0.00%> (-2.20%)	⬇️
go/common/sgx/aesm/aesm.go	69.15% <0.00%> (-1.87%)	⬇️
.../consensus/tendermint/apps/roothash/state/state.go	68.64% <0.00%> (-1.70%)	⬇️
go/consensus/tendermint/beacon/beacon.go	70.43% <0.00%> (-0.54%)	⬇️
... and 22 more

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