Bump orjson from 3.6.7 to 3.6.8

Bumps [orjson](https://github.com/ijl/orjson) from 3.6.7 to 3.6.8.
- [Release notes](https://github.com/ijl/orjson/releases)
- [Changelog](https://github.com/ijl/orjson/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ijl/orjson/compare/3.6.7...3.6.8)

---
updated-dependencies:
- dependency-name: orjson
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -8,7 +8,7 @@ discord-py-interactions==4.1.0
 discord.py==1.7.3
 idna==3.3
 multidict==6.0.2
-orjson==3.6.7
+orjson==3.6.8
 pycparser==2.21
 PyNaCl==1.5.0
 python-dotenv==0.20.0