Use correct scheming extension

.github/workflows/test.yml

@@ -43,11 +43,16 @@ jobs:
         pip install -r requirements.txt
         pip install -r dev-requirements.txt
         pip install --upgrade pytest-rerunfailures
-        pip install -e 'git+https://github.com/ckan/ckanext-scheming.git@release-3.0.0#egg=ckanext-scheming[requirements]'
         pip install -e 'git+https://github.com/ckan/ckanext-harvest.git@v1.5.6#egg=ckanext-harvest[requirements]'
         pip install -e 'git+https://github.com/ckan/ckanext-dcat.git@v1.5.1#egg=ckanext-dcat[requirements]'
         pip install -r https://raw.githubusercontent.com/ckan/ckanext-dcat/v1.5.1/requirements.txt
         python3 setup.py develop
+    - name: Clone and Install ckanext-scheming
+      run: |
+        git clone https://github.com/CivityNL/ckanext-scheming.git ${APP_DIR}/src/ckanext-scheming
+        cd "${APP_DIR}/src/ckanext-scheming"
+        git checkout release-3.0.0-civity
+        pip3 install -e .  
     - name: Setup extension
       # Extra initialization steps
       run: |