Update asdf requirement from <4,>=3.1.0 to >=3.1.0,<5

Updates the requirements on [asdf](https://github.com/asdf-format/asdf) to permit the latest version.
- [Release notes](https://github.com/asdf-format/asdf/releases)
- [Changelog](https://github.com/asdf-format/asdf/blob/main/CHANGES.rst)
- [Commits](asdf-format/asdf@3.1.0...4.1.0)

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

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

pyproject.toml

@@ -19,7 +19,7 @@ classifiers = [
     "Programming Language :: Python",
 ]
 dependencies = [
-    "asdf>=3.1.0,<4",
+    "asdf>=3.1.0,<5",
     "astropy>=6.0,<7",
     "astroquery>=0.4.7,<0.5.0",
     "beautifulsoup4>=4.12.3,<5",