CI: add ifcopenshell to Ubuntu native builds (#21709)

* CI: add ifcopenshell to Ubuntu native builds

* CI: move test dependencies installation after build/runtime deps installation

* CI: bump ifcopenshell

.github/workflows/sub_buildUbuntu.yml

@@ -80,9 +80,17 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           submodules: true
+
       - name: Install FreeCAD dependencies
         run: ./package/ubuntu/install-apt-packages.sh
 
+      - name: Install FreeCAD Python test dependencies
+        run: |
+          sudo apt-get update -y -qq
+          sudo apt-get install -y -qq python3-pip
+          python3 -m pip install --upgrade pip
+          python3 -m pip install ifcopenshell==0.8.2
+
       - name: Make needed directories, files and initializations
         id: Init
         run: |