Add pybind11 to dockerfile for system test

tools/tests/dockerfiles/ubuntu_2404/Dockerfile

@@ -204,6 +204,12 @@ RUN python3 -m venv /home/precice/venv && \
     cd micro-manager && \
     git checkout ${MICRO_MANAGER_VERSION} && \
     pip3 install .
+WORKDIR /home/precice
+RUN python3 -m venv /home/precice/venv && \
+    . /home/precice/venv/bin/activate && \
+    pip3 install pybind11
+ENV pybind11_DIR = "/home/precice/venv/lib/python3.13/site-packages/pybind11/share/cmake/pybind11"
+
 
 FROM micro_manager AS dumux_adapter
 USER root

tools/tests/tests.yaml

@@ -41,16 +41,16 @@ test_suites:
         reference_result: ./perpendicular-flap/reference-results/fluid-openfoam_solid-calculix.tar.gz
   dumux_test:
     tutorials:
-      - path: free-flow-over-porous-media
-        case_combination:
-          - free-flow-dumux
-          - porous-media-dumux
-        reference_result: ./free-flow-over-porous-media/reference-results/free-flow-dumux_porous-media-dumux.tar.gz
       - path: two-scale-heat-conduction
         case_combination:
           - macro-dumux
           - micro-dumux
         reference_result: ./two-scale-heat-conduction/reference-results/macro-dumux_micro-dumux.tar.gz
+      - path: free-flow-over-porous-media
+        case_combination:
+          - free-flow-dumux
+          - porous-media-dumux
+        reference_result: ./free-flow-over-porous-media/reference-results/free-flow-dumux_porous-media-dumux.tar.gz
   su2_test:
     tutorials:
       - path: perpendicular-flap

two-scale-heat-conduction/metadata.yaml

@@ -16,5 +16,5 @@ cases:
   micro-dumux:
     participant: Micro-Manager
     directory: ./micro-dumux
-    run: ./run.sh -l /home/precice/dumux
+    run: source /home/precice/venv/bin/activate && ./run.sh -l /home/precice/dumux
     component: dumux-adapter