Update nox requirement from ~=2024.3.2 to ~=2024.4.15

Updates the requirements on [nox](https://github.com/wntrblm/nox) to permit the latest version.
- [Release notes](https://github.com/wntrblm/nox/releases)
- [Changelog](https://github.com/wntrblm/nox/blob/main/CHANGELOG.md)
- [Commits](wntrblm/nox@2024.03.02...2024.04.15)

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

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

pyproject.toml

@@ -55,7 +55,7 @@ license = { file = 'LICENSE' }
 
 [project.optional-dependencies]
 ci = [
-    'nox~=2024.3.2',
+    'nox~=2024.4.15',
 ]
 docs = [
     'recommonmark~=0.7.1',