ci(lint): setup golangci-lint

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

plugins/main/loopback/loopback.go

@@ -26,7 +26,6 @@ import (
 	"github.com/containernetworking/cni/pkg/types"
 	current "github.com/containernetworking/cni/pkg/types/100"
 	"github.com/containernetworking/cni/pkg/version"
-
 	"github.com/containernetworking/plugins/pkg/ns"
 	bv "github.com/containernetworking/plugins/pkg/utils/buildversion"
 )
@@ -112,7 +111,7 @@ func cmdAdd(args *skel.CmdArgs) error {
 		r := &current.Result{
 			CNIVersion: conf.CNIVersion,
 			Interfaces: []*current.Interface{
-				&current.Interface{
+				{
 					Name:    args.IfName,
 					Mac:     "00:00:00:00:00:00",
 					Sandbox: args.Netns,

plugins/main/loopback/loopback_suite_test.go

@@ -15,12 +15,11 @@
 package main_test
 
 import (
-	"github.com/onsi/gomega/gexec"
+	"testing"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-
-	"testing"
+	"github.com/onsi/gomega/gexec"
 )
 
 var pathToLoPlugin string

plugins/main/loopback/loopback_test.go

@@ -20,12 +20,13 @@ import (
 	"os/exec"
 	"strings"
 
-	"github.com/containernetworking/plugins/pkg/ns"
-	"github.com/containernetworking/plugins/pkg/testutils"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/gbytes"
 	"github.com/onsi/gomega/gexec"
+
+	"github.com/containernetworking/plugins/pkg/ns"
+	"github.com/containernetworking/plugins/pkg/testutils"
 )
 
 func generateConfig(cniVersion string) *strings.Reader {