fixit

Author: MelvinKl

.github/workflows/ci.yaml

@@ -75,7 +75,10 @@ jobs:
       - name: Install core
         run: |
           pip install poetry
-          poetry config virtualenvs.create false
+          poetry config virtualenvs.create false          
+          python -m venv .venv
+          . .venv/bin/activate
+          echo PATH=$PATH >> $GITHUB_ENV
           git clone https://github.com/stackitcloud/stackit-sdk-python-core.git core
           cd core;make install;
       - name: Install sdk