build(deps): update ozi-spec requirement from ~=0.18.0 to ~=0.19.0

Updates the requirements on [ozi-spec](https://github.com/OZI-Project/ozi-spec) to permit the latest version.
- [Release notes](https://github.com/OZI-Project/ozi-spec/releases)
- [Changelog](https://github.com/OZI-Project/ozi-spec/blob/main/CHANGELOG.md)
- [Commits](OZI-Project/ozi-spec@0.18.0...0.19.0)

---
updated-dependencies:
- dependency-name: ozi-spec
  dependency-type: direct:production
...

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

pyproject.toml

@@ -8,7 +8,7 @@ dependencies = [
     'idna~=3.10',
     'meson[ninja]~=1.1',
     'ozi-templates~=2.19.3',
-    'ozi-spec~=0.18.0',
+    'ozi-spec~=0.19.0',
     'packaging~=24.1',
     'platformdirs~=4.3',
     'prompt-toolkit~=3.0.48',