vendor: update all dependencies

vendor/github.com/jlaffaye/ftp/ftp.go

@@ -496,6 +496,41 @@ func (c *ServerConn) Delete(path string) error {
 	return err
 }
 
+// RemoveDirRecur deletes a non-empty folder recursively using
+// RemoveDir and Delete
+func (c *ServerConn) RemoveDirRecur(path string) error {
+	err := c.ChangeDir(path)
+	if err != nil {
+		return err
+	}
+	currentDir, err := c.CurrentDir()
+	if err != nil {
+		return err
+	}
+	entries, err := c.List(currentDir)
+	for _, entry := range entries {
+		if entry.Name != ".." && entry.Name != "." {
+			if entry.Type == EntryTypeFolder {
+				err = c.RemoveDirRecur(currentDir + "/" + entry.Name)
+				if err != nil {
+					return err
+				}
+			} else {
+				err = c.Delete(entry.Name)
+				if err != nil {
+					return err
+				}
+			}
+		}
+	}
+	err = c.ChangeDirToParent()
+	if err != nil {
+		return err
+	}
+	err = c.RemoveDir(currentDir)
+	return err
+}
+
 // MakeDir issues a MKD FTP command to create the specified directory on the
 // remote FTP server.
 func (c *ServerConn) MakeDir(path string) error {