[wip] fixing python

Author: mkstoyanov

.github/workflows/build-ubuntu.yaml

@@ -27,7 +27,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Install requirements
-        run: python3 -m venv ./tastest/ && source ./tastest/bin/activate && python3 -m pip install numpy
+        run: >
+          python3 -m venv ./tastest/ && source ./tastest/bin/activate &&
+          python3 -m pip install numpy
       - name: Build
         run: >
           source ./tastest/bin/activate &&