runtime: Bump oasis-cbor to 0.3.0

[kostko]

No description provided.

[codecov]

Codecov Report

Merging #4784 (dc16052) into master (c30f051) will decrease coverage by 0.06%.
The diff coverage is n/a.

❗ Current head dc16052 differs from pull request most recent head 0d4b6a2. Consider uploading reports for the commit 0d4b6a2 to get more accurate results

@@            Coverage Diff             @@
##           master    #4784      +/-   ##
==========================================
- Coverage   67.02%   66.95%   -0.07%     
==========================================
  Files         451      451              
  Lines       50295    50295              
==========================================
- Hits        33711    33676      -35     
- Misses      12431    12462      +31     
- Partials     4153     4157       +4     

Impacted Files	Coverage Δ
go/consensus/tendermint/apps/staking/votes.go	57.89% <0.00%> (-10.53%)	⬇️
go/consensus/tendermint/apps/roothash/query.go	86.20% <0.00%> (-6.90%)	⬇️
go/common/grpc/grpc.go	79.88% <0.00%> (-4.44%)	⬇️
...nsensus/tendermint/apps/keymanager/transactions.go	52.77% <0.00%> (-2.78%)	⬇️
go/consensus/tendermint/apps/staking/staking.go	56.90% <0.00%> (-2.21%)	⬇️
go/oasis-node/cmd/node/node.go	54.30% <0.00%> (-1.68%)	⬇️
go/worker/storage/committee/node.go	76.47% <0.00%> (-1.66%)	⬇️
go/consensus/tendermint/abci/mux.go	58.37% <0.00%> (-1.26%)	⬇️
go/consensus/tendermint/full/common.go	68.09% <0.00%> (-1.01%)	⬇️
go/roothash/api/grpc.go	45.18% <0.00%> (-0.84%)	⬇️
... and 14 more

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[ptrus]

nice!