chore(deps): update skyfield-data requirement from >=3,<6 to >=6.0.0,<7

Updates the requirements on [skyfield-data](https://github.com/brunobord/skyfield-data) to permit the latest version.
- [Release notes](https://github.com/brunobord/skyfield-data/releases)
- [Changelog](https://github.com/brunobord/skyfield-data/blob/master/CHANGELOG.md)
- [Commits](https://github.com/brunobord/skyfield-data/compare/3.0.0...6.0.0)

---
updated-dependencies:
- dependency-name: skyfield-data
  dependency-type: direct:production
...

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

pyproject.toml

@@ -25,7 +25,7 @@ numpy = [
     { version = "<1.25", python = "3.8.*" },
     { version = "^1.25", python = ">=3.9,<3.13" },
 ]
-skyfield-data = ">=3,<6"
+skyfield-data = ">=6.0.0,<7"
 python-dateutil = "^2.8"
 
 [tool.poetry.group.dev.dependencies]