fix(moderation): added encoding type to open() in history command (pylint fix)

moderation/moderation.py

@@ -748,7 +748,7 @@ class Moderation(commands.Cog):
         if export:
             try:
                 filename = str(data_manager.cog_data_path(cog_instance=self)) + str(os.sep) + f"moderation_{interaction.guild.id}.json"
-                with open(filename, "w") as f:
+                with open(filename, "w", encoding="utf-8") as f:
                     json.dump(result_dict_list, f, indent=2)
                 await interaction.followup.send(file=discord.File(filename, f"moderation_{interaction.guild.id}.json"), ephemeral=ephemeral)
                 os.remove(filename)