[#1341] .golangci.yml: Replace exportloopref with copyloopvar

exportloopref is deprecated.
gopatch:
```
@@
var index, value identifier
var slice expression
@@
for index, value := range slice {
...
-value := value
...
}

@@
var index, value identifier
var slice expression
@@
for index, value := range slice {
...
-index := index
...
}

@@
var value identifier
var channel expression
@@
for value := range channel {
...
-value := value
...
}
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

cmd/frostfs-cli/modules/container/list.go

@@ -70,7 +70,6 @@ var listContainersCmd = &cobra.Command{
 				continue
 			}
 
-			cnrID := cnrID
 			prmGet.ClientParams.ContainerID = &cnrID
 			res, err := internalclient.GetContainer(cmd.Context(), prmGet)
 			if err != nil {

cmd/frostfs-cli/modules/object/nodes.go

@@ -393,8 +393,6 @@ func getActualPlacement(cmd *cobra.Command, netmap *netmapSDK.NetMap, pk *ecdsa.
 
 	eg, egCtx := errgroup.WithContext(cmd.Context())
 	for _, cand := range candidates {
-		cand := cand
-
 		eg.Go(func() error {
 			cli, err := createClient(egCtx, cmd, cand, pk)
 			if err != nil {
@@ -405,7 +403,6 @@ func getActualPlacement(cmd *cobra.Command, netmap *netmapSDK.NetMap, pk *ecdsa.
 			}
 
 			for _, object := range objects {
-				object := object
 				eg.Go(func() error {
 					stored, err := isObjectStoredOnNode(egCtx, cmd, object.containerID, object.objectID, cli, pk)
 					resultMtx.Lock()