Bump github.com/tendermint/tm-db from 0.1.1 to 0.2.0 (#5069)

Bumps [github.com/tendermint/tm-db](https://github.com/tendermint/tm-db) from 0.1.1 to 0.2.0.
- [Release notes](https://github.com/tendermint/tm-db/releases)
- [Changelog](https://github.com/tendermint/tm-db/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tendermint/tm-db/compare/v0.1.1...v0.2.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -27,7 +27,7 @@ require (
 	github.com/tendermint/go-amino v0.15.0
 	github.com/tendermint/iavl v0.12.4
 	github.com/tendermint/tendermint v0.32.3
-	github.com/tendermint/tm-db v0.1.1
+	github.com/tendermint/tm-db v0.2.0
 	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
 	gopkg.in/yaml.v2 v2.2.2
 )

go.sum

@@ -214,6 +214,8 @@ github.com/tendermint/tendermint v0.32.3 h1:GEnWpGQ795h5oTFNbfBLsY0LW/CW2j6p6Hti
 github.com/tendermint/tendermint v0.32.3/go.mod h1:ZK2c29jl1QRYznIRyRWRDsmm1yvtPzBRT00x4t1JToY=
 github.com/tendermint/tm-db v0.1.1 h1:G3Xezy3sOk9+ekhjZ/kjArYIs1SmwV+1OUgNkj7RgV0=
 github.com/tendermint/tm-db v0.1.1/go.mod h1:0cPKWu2Mou3IlxecH+MEUSYc1Ch537alLe6CpFrKzgw=
+github.com/tendermint/tm-db v0.2.0 h1:rJxgdqn6fIiVJZy4zLpY1qVlyD0TU6vhkT4kEf71TQQ=
+github.com/tendermint/tm-db v0.2.0/go.mod h1:0cPKWu2Mou3IlxecH+MEUSYc1Ch537alLe6CpFrKzgw=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=