dep: pip: bump discord-py from 2.1.0 to 2.2.2

Bumps [discord-py](https://github.com/Rapptz/discord.py) from 2.1.0 to 2.2.2.
- [Release notes](https://github.com/Rapptz/discord.py/releases)
- [Commits](Rapptz/discord.py@v2.1.0...v2.2.2)

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

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-discord.py==2.1.0
+discord.py==2.2.2
 pandas==1.5.3
 # psycopg2-binary==2.9.5
 psycopg2==2.9.5