Psydac manual install

.github/workflows/deploy-book.yml

@@ -19,17 +19,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        apt install python3 python3-dev python3-pip
-        apt install gcc gfortran
-        apt install libblas-dev liblapack-dev
-        apt install libopenmpi-dev openmpi-bin
-        apt install libomp-dev libomp5
-        apt install libhdf5-openmpi-dev
         git clone https://github.com/pyccel/psydac.git
         cd psydac
-        pip install -r requirements.txt
-        pip install -r requirements_extra.txt --no-build-isolation
-        pip install .
+        pip install --no-dependencies .
+        cd .. 
         pip install jupyter-book ghp-import sphinx_proof
         python -m ipykernel install --user --name .iga-python --display-name "IGA-Python"