feat(ci): migrate to uv in CI (#3038)

* feat(ci): migrate to `uv` in CI

* feat(ci): drop upgrade strategy

* feat(ci): use `uv` in docs workflow

* fix(ci/doc): update sphinx build cmd

* fix(ci/doc): specify python path

* (experimental) simplify

* remove venv

* Revert line wrap change for doc.yml

---------

Co-authored-by: Brent Yi <yibrenth@gmail.com>

.github/workflows/doc.yml

@@ -18,7 +18,8 @@ jobs:
           python-version: '3.9'
       - name: Install dependencies
         run: |
-          pip install .[docs]
+          pip install uv
+          uv pip install --system .[docs]
       - name: Sphinx build
         # fail on warnings
         run: |