deps: bump iavl (cosmos#7182)

go.mod

@@ -9,9 +9,9 @@ require (
 	github.com/bgentry/speakeasy v0.1.0
 	github.com/btcsuite/btcd v0.20.1-beta
 	github.com/btcsuite/btcutil v1.0.2
-	github.com/confio/ics23/go v0.0.0-20200804135932-65ad804e8539
+	github.com/confio/ics23/go v0.0.0-20200817220745-f173e6211efb
 	github.com/cosmos/go-bip39 v0.0.0-20180819234021-555e2067c45d
-	github.com/cosmos/iavl v0.15.0-rc2
+	github.com/cosmos/iavl v0.15.0-rc3
 	github.com/cosmos/ledger-cosmos-go v0.11.1
 	github.com/enigmampc/btcutil v1.0.3-0.20200723161021-e2fb6adb2a25
 	github.com/gogo/gateway v1.1.0
@@ -24,8 +24,6 @@ require (
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/magiconair/properties v1.8.2
 	github.com/mattn/go-isatty v0.0.12
-	github.com/onsi/ginkgo v1.8.0 // indirect
-	github.com/onsi/gomega v1.5.0 // indirect
 	github.com/otiai10/copy v1.2.0
 	github.com/pelletier/go-toml v1.8.0 // indirect
 	github.com/pkg/errors v0.9.1
@@ -44,9 +42,9 @@ require (
 	github.com/tendermint/crypto v0.0.0-20191022145703-50d29ede1e15
 	github.com/tendermint/go-amino v0.15.1
 	github.com/tendermint/tendermint v0.34.0-rc3
-	github.com/tendermint/tm-db v0.6.1
-	golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899
-	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
+	github.com/tendermint/tm-db v0.6.2
+	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
+	google.golang.org/genproto v0.0.0-20200825200019-8632dd797987
 	google.golang.org/grpc v1.31.1
 	google.golang.org/protobuf v1.25.0
 	gopkg.in/yaml.v2 v2.3.0