Update oembedpy requirement from <0.8 to <0.9

Updates the requirements on [oembedpy](https://github.com/attakei/oEmbedPy) to permit the latest version.
- [Release notes](https://github.com/attakei/oEmbedPy/releases)
- [Changelog](https://github.com/attakei/oEmbedPy/blob/main/docs/changelogs.rst)
- [Commits](attakei/oEmbedPy@v0.1.0...v0.8.0)

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

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

setup.py

@@ -63,7 +63,7 @@
         "jupysql<0.11",
         "myst-nb<1.2",
         "myst-parser[linkify]<5",
-        "oembedpy<0.8",
+        "oembedpy<0.9",
         "sphinx>=7.1,<9",
         "sphinx-basic-ng==1.0.0b2",
         "sphinx-copybutton>=0.3.1,<1",