ci: add cache to setup stage

Signed-off-by: David Wallace <david.wallace@tu-darmstadt.de>

Author: MyPyDavid

.github/workflows/ci.yml

@@ -88,6 +88,8 @@ jobs:
         uses: astral-sh/setup-uv@v5
         with:
           python-version: ${{ matrix.python-version }}
+          enable-cache: true
+          cache-dependency-glob: "pyproject.toml"
 
       - name: Download built wheel
         uses: actions/download-artifact@v4