fix: 账号备份选择SFTP有多个时，重复编码password会导致任务异常

apps/common/utils/file.py

@@ -21,6 +21,8 @@ def encrypt_and_compress_zip_file(filename, secret_password, encrypted_filenames
     with pyzipper.AESZipFile(
             filename, 'w', compression=pyzipper.ZIP_LZMA, encryption=pyzipper.WZ_AES
     ) as zf:
+        if secret_password and isinstance(secret_password, str):
+            secret_password = secret_password.encode('utf8')
         zf.setpassword(secret_password)
         for encrypted_filename in encrypted_filenames:
             with open(encrypted_filename, 'rb') as f: