Update orjson requirement from ~=3.11 to ~=3.12 (#4524)

Updates the requirements on [orjson](https://github.com/ijl/orjson) to permit the latest version.
- [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/3.11.0...3.12.0)

---
updated-dependencies:
- dependency-name: orjson
  dependency-version: 3.12.0
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -31,7 +31,7 @@ wtforms~=3.2
 jsonpath-ng~=1.8.0
 
 # Fast JSON serialization for better performance
-orjson~=3.11
+orjson~=3.12
 
 # dnspython - Used by paho-mqtt for MQTT broker resolution  
 # Version pin removed since eventlet (which required the specific 2.6.1 pin) has been eliminated