pybamm-team#3480 pybind11 is to be installed for benchmarks

.github/workflows/benchmark_on_push.yml

@@ -14,19 +14,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Python 3.8
+      - name: Set up Python 3.11
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: 3.11
 
       - name: Install Linux system dependencies
         run: |
           sudo apt-get update
-          sudo apt install gfortran gcc libopenblas-dev
+          sudo apt-get install gfortran gcc libopenblas-dev
 
-      - name: Install python dependencies
+      - name: Install Python dependencies
         run: |
-          python -m pip install --upgrade pip wheel setuptools wget cmake casadi numpy
+          python -m pip install --upgrade pip wheel setuptools wget cmake casadi pybind11
           python -m pip install asv[virtualenv]
 
       - name: Install SuiteSparse and SUNDIALS