fix: Fall back to pip for Python 3.8 as uv fails here

.github/workflows/ci.yml

@@ -44,11 +44,19 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Install dependencies
+      if: matrix.python-version != '3.8'
       run: |
         python -m pip install uv
         python -m uv pip install --system --upgrade pip setuptools wheel
         python -m uv pip install --system --upgrade ".[all,test]"
 
+      # c.f. https://github.com/astral-sh/uv/issues/2062
+    - name: Install dependencies (Python 3.8)
+      if: matrix.python-version == '3.8'
+      run: |
+        python -m pip install --upgrade pip setuptools wheel
+        python -m pip install --upgrade ".[all,test]"
+
     - name: List installed Python packages
       run: python -m pip list