fix the orignal CI/CD bug

Author: srivatsankrishnan

.github/workflows/ci.yml

@@ -21,9 +21,17 @@ jobs:
         with:
           python-version-file: ".python-version"
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
+
       - name: Install dependencies
         run: pip install '.[dev,docs]'
 
+      - name: Check uv.lock is up to date
+        run: uv lock --check
+
       - name: Run ruff linter
         run: ruff check