chore: bump sdk to v1.20.0

go.mod

@@ -239,7 +239,7 @@ require (
 )
 
 replace (
-	github.com/cosmos/cosmos-sdk => github.com/celestiaorg/cosmos-sdk v1.18.3-sdk-v0.46.14
+	github.com/cosmos/cosmos-sdk => github.com/celestiaorg/cosmos-sdk v1.20.0-sdk-v0.46.16-rc0
 	github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.3-alpha.regen.1
 	github.com/syndtr/goleveldb => github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	github.com/tendermint/tendermint => github.com/celestiaorg/celestia-core v1.29.0-tm-v0.34.29

go.sum

@@ -322,8 +322,8 @@ github.com/celestiaorg/blobstream-contracts/v3 v3.1.0 h1:h1Y4V3EMQ2mFmNtWt2sIhZI
 github.com/celestiaorg/blobstream-contracts/v3 v3.1.0/go.mod h1:x4DKyfKOSv1ZJM9NwV+Pw01kH2CD7N5zTFclXIVJ6GQ=
 github.com/celestiaorg/celestia-core v1.29.0-tm-v0.34.29 h1:Fd7ymPUzExPGNl2gZw4i5S74arMw+iDHLE78M/cCxl4=
 github.com/celestiaorg/celestia-core v1.29.0-tm-v0.34.29/go.mod h1:xrICN0PBhp3AdTaZ8q4wS5Jvi32V02HNjaC2EsWiEKk=
-github.com/celestiaorg/cosmos-sdk v1.18.3-sdk-v0.46.14 h1:+Te28r5Zp4Vp69f82kcON9/BIF8f1BNXb0go2+achuc=
-github.com/celestiaorg/cosmos-sdk v1.18.3-sdk-v0.46.14/go.mod h1:Og5KKgoBEiQlI6u56lDLG191pfknIdXctFn3COWLQP8=
+github.com/celestiaorg/cosmos-sdk v1.20.0-sdk-v0.46.16-rc0 h1:KyuLAqq4qd0MkoA+wN8tr/3msUWgt4Kc/rxCZ5Zfm6U=
+github.com/celestiaorg/cosmos-sdk v1.20.0-sdk-v0.46.16-rc0/go.mod h1:Tvsc3YnqvflXTYC8xIy/Q07Es95xZ1pZC/imoKogtbg=
 github.com/celestiaorg/knuu v0.10.0 h1:uYO6hVsoCAJ/Q4eV0Pn8CLbbupGAjD56xQc4y2t4lf0=
 github.com/celestiaorg/knuu v0.10.0/go.mod h1:2NjDX29x09hRpaaWaKvi7pw9VjI/SHo+/4HldyEW50g=
 github.com/celestiaorg/merkletree v0.0.0-20210714075610-a84dc3ddbbe4 h1:CJdIpo8n5MFP2MwK0gSRcOVlDlFdQJO1p+FqdxYzmvc=