Bump orjson from 3.10.13 to 3.10.15 in the requirements-txt-deps group

Bumps the requirements-txt-deps group with 1 update: [orjson](https://github.com/ijl/orjson).


Updates `orjson` from 3.10.13 to 3.10.15
- [Release notes](https://github.com/ijl/orjson/releases)
- [Changelog](https://github.com/ijl/orjson/blob/master/CHANGELOG.md)
- [Commits](ijl/orjson@3.10.13...3.10.15)

---
updated-dependencies:
- dependency-name: orjson
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: requirements-txt-deps
...

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

Author: dependabot[bot]

requirements.txt

@@ -17,7 +17,7 @@ steamio @ git+https://github.com/Aluerie/steam.py@introduce-ext.dota2
 pulsefire==2.0.21
 
 # OPTIMISATION
-orjson==3.10.13
+orjson==3.10.15
 uvloop==0.21.0; platform_system == 'Linux'  # ignore on non-Linux - because not available
 
 # JUPYTER NOTEBOOKS