fix: use uv tool install for ruff instead of uv pip install

- uv tool install is the correct way to install CLI tools like ruff
- uv pip install --system is for Python packages, not tools

.github/workflows/build-reusable.yml

@@ -26,9 +26,9 @@ jobs:
       - name: Install uv
         uses: astral-sh/setup-uv@v4
 
-      - name: Install dependencies with ruff
+      - name: Install ruff
         run: |
-          uv pip install --system ruff==0.12.7
+          uv tool install ruff==0.12.7
 
       - name: Run ruff check
         run: |