build(deps): bump github.com/ethereum/go-ethereum from 1.9.19 to 1.9.…

…20 (cosmos#473)

Bumps [github.com/ethereum/go-ethereum](https://github.com/ethereum/go-ethereum) from 1.9.19 to 1.9.20.
- [Release notes](https://github.com/ethereum/go-ethereum/releases)
- [Commits](ethereum/go-ethereum@v1.9.19...v1.9.20)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/cespare/cp v1.1.1 // indirect
 	github.com/cosmos/cosmos-sdk v0.39.1
 	github.com/deckarep/golang-set v1.7.1 // indirect
-	github.com/ethereum/go-ethereum v1.9.19
+	github.com/ethereum/go-ethereum v1.9.20
 	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
 	github.com/gorilla/mux v1.8.0
 	github.com/gorilla/websocket v1.4.2

go.sum

@@ -162,6 +162,8 @@ github.com/ethereum/go-ethereum v1.9.18 h1:+vzvufVD7+OfQa07IJP20Z7AGZsJaw0M6JIA/
 github.com/ethereum/go-ethereum v1.9.18/go.mod h1:JSSTypSMTkGZtAdAChH2wP5dZEvPGh3nUTuDpH+hNrg=
 github.com/ethereum/go-ethereum v1.9.19 h1:c9IrhzqPKY+ZkS/YhXCO3rgNzlxsVrCYIRvrIAFmIWM=
 github.com/ethereum/go-ethereum v1.9.19/go.mod h1:JSSTypSMTkGZtAdAChH2wP5dZEvPGh3nUTuDpH+hNrg=
+github.com/ethereum/go-ethereum v1.9.20 h1:kk/J5OIoaoz3DRrCXznz3RGi212mHHXwzXlY/ZQxcj0=
+github.com/ethereum/go-ethereum v1.9.20/go.mod h1:JSSTypSMTkGZtAdAChH2wP5dZEvPGh3nUTuDpH+hNrg=
 github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 h1:0JZ+dUmQeA8IIVUMzysrX4/AKuQwWhV2dYQuPZdvdSQ=
 github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
 github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 h1:JWuenKqqX8nojtoVVWjGfOF9635RETekkoH6Cc9SX0A=