ci: use uv tool run spacy download to avoid missing pip in uv venv

Author: jexp

.github/workflows/pr.yaml

@@ -35,7 +35,7 @@ jobs:
         run: uv sync --frozen --all-extras --group dev
       - name: Download SpaCy model
         if: matrix.python-version != '3.14'
-        run: uv run --frozen python -m spacy download en_core_web_sm
+        run: uv tool run spacy download en_core_web_sm
       - name: Check format and linting
         run: |
           uv run --frozen ruff check .