chore(deps): update openjd-model requirement from ==0.4.* to >=0.4,<0.6

Updates the requirements on [openjd-model](https://github.com/OpenJobDescription/openjd-model-for-python) to permit the latest version.
- [Release notes](https://github.com/OpenJobDescription/openjd-model-for-python/releases)
- [Changelog](https://github.com/OpenJobDescription/openjd-model-for-python/blob/mainline/CHANGELOG.md)
- [Commits](OpenJobDescription/openjd-model-for-python@0.4.0...0.5.1)

---
updated-dependencies:
- dependency-name: openjd-model
  dependency-type: direct:production
...

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

pyproject.toml

@@ -30,7 +30,7 @@ classifiers = [
 ]
 dependencies = [
   "openjd-sessions == 0.8.*",
-  "openjd-model == 0.4.*"
+  "openjd-model >= 0.4,< 0.6"
 ]
 
 [project.urls]