dependency-groups.dev and uv in docs (#691)

* dependency-groups.dev and switch to uv in docs
* Separate dependency group for docs

.github/workflows/test-sqlite-support.yml

@@ -34,7 +34,7 @@ jobs:
     - run: python3 -c "import sqlite3; print(sqlite3.sqlite_version)"
     - name: Install dependencies
       run: |
-        pip install -e '.[test]'
+        pip install . --group dev
         pip freeze
     - name: Run tests
       run: |