[MM-54852] Add mmctl command to download Support Packet (#25419)

* Add mmctl command to download Support Packet

* Simplify file name

* Revert "Simplify file name"

This reverts commit 17084a3350605134ba338ffa25ce43a7c9482f1d.

* Fix docs

server/cmd/mmctl/client/client.go

@@ -148,4 +148,5 @@ type Client interface {
 	DownloadExport(ctx context.Context, name string, wr io.Writer, offset int64) (int64, *model.Response, error)
 	GeneratePresignedURL(ctx context.Context, name string) (*model.PresignURLResponse, *model.Response, error)
 	ResetSamlAuthDataToEmail(ctx context.Context, includeDeleted bool, dryRun bool, userIDs []string) (int64, *model.Response, error)
+	GenerateSupportPacket(ctx context.Context) ([]byte, *model.Response, error)
 }