feat(epochs): add wrapper of epoch getter (backport #22068) (#22124)

Co-authored-by: Narangde <hansol.lee@storyprotocol.xyz>
Co-authored-by: Julien Robert <julien@rbrt.fr>

tests/integration/tx/context_test.go

@@ -3,16 +3,18 @@ package tx
 import (
 	"testing"
 
+	"github.com/stretchr/testify/require"
+
 	"cosmossdk.io/depinject"
 	"cosmossdk.io/log"
 	_ "cosmossdk.io/x/accounts"
 	"cosmossdk.io/x/tx/signing"
+
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/tests/integration/tx/internal"
 	"github.com/cosmos/cosmos-sdk/tests/integration/tx/internal/pulsar/testpb"
 	"github.com/cosmos/cosmos-sdk/testutil/configurator"
 	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
-	"github.com/stretchr/testify/require"
 )
 
 func ProvideCustomGetSigner() signing.CustomGetSigner {

tests/integration/tx/internal/util.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"testing"
 
+	gogoproto "github.com/cosmos/gogoproto/proto"
 	"github.com/stretchr/testify/require"
 	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/reflect/protoreflect"
@@ -26,7 +27,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	authsigning "github.com/cosmos/cosmos-sdk/x/auth/signing"
 	"github.com/cosmos/cosmos-sdk/x/auth/tx"
-	gogoproto "github.com/cosmos/gogoproto/proto"
 )
 
 var TestRepeatedFieldsSigner = signing.CustomGetSigner{