Update waitress requirement from ~=2.1.2 to ~=3.0.0

Updates the requirements on [waitress](https://github.com/Pylons/waitress) to permit the latest version.
- [Release notes](https://github.com/Pylons/waitress/releases)
- [Changelog](https://github.com/Pylons/waitress/blob/main/CHANGES.txt)
- [Commits](Pylons/waitress@v2.1.2...v3.0.0)

---
updated-dependencies:
- dependency-name: waitress
  dependency-type: direct:production
...

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

requirements.txt

@@ -3,7 +3,7 @@ flask-mqtt
 pyroute2~=0.7.12
 PyYAML~=6.0.1
 Flask~=3.0.1
-waitress~=2.1.2
+waitress~=3.0.0
 
 # Common
 ipaddress~=1.0.23