fix(oracle): convert the assetID to lowercase format when setting ora…

…cle parameter (#166)

* convert the assetID to lowercase format when set oracle parameter

* rebase to the develop and fix the lint error

testutil/tx/eip712.go

@@ -84,7 +84,8 @@ func PrepareEIP712CosmosTx(
 	if err != nil {
 		return nil, err
 	}
-	fee := legacytx.NewStdFee(txArgs.Gas, txArgs.Fees) //nolint: staticcheck
+	//nolint: staticcheck
+	fee := legacytx.NewStdFee(txArgs.Gas, txArgs.Fees)
 
 	msgs := txArgs.Msgs
 	data := legacytx.StdSignBytes(ctx.ChainID(), accNumber, nonce, 0, fee, msgs, "", nil)

x/oracle/types/params.go

@@ -2,6 +2,7 @@ package types
 
 import (
 	"errors"
+	"strings"
 
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
 	"gopkg.in/yaml.v2"
@@ -277,6 +278,7 @@ func (p Params) UpdateTokens(currentHeight uint64, tokens ...*Token) (Params, er
 		update := false
 		for tokenID := 1; tokenID < len(p.Tokens); tokenID++ {
 			token := p.Tokens[tokenID]
+			token.AssetID = strings.ToLower(token.AssetID)
 			if token.ChainID == t.ChainID && token.Name == t.Name {
 				// modify existing token
 				update = true