update tests to use uv

Author: meeb

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
-          pip install -r requirements-dev.txt
+          pip install uv
+          uv sync
       - name: Run whoisit tests
         run: make test