Bump discord-py from 2.5.2 to 2.6.4

Bumps [discord-py](https://github.com/Rapptz/discord.py) from 2.5.2 to 2.6.4.
- [Commits](Rapptz/discord.py@v2.5.2...v2.6.4)

---
updated-dependencies:
- dependency-name: discord-py
  dependency-version: 2.6.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -22,7 +22,7 @@ paramiko==4.0.0
 ftpretty==0.4.0
 pytz>=2023.3
 pydantic==2.12.3
-discord.py==2.5.2
+discord.py==2.6.4
 # django-directory
 # django-dirctory is currently incompatible with Django 4.0+, PR is pending to fix django-directory upstream
 git+https://github.com/cemathey/django-directory@f51ee1e8dc50edf453fee4a0d9631c0e46fe9433