Normalize CI and remove build artifacts

Author: inaciovasquez2020

.github/workflows/ci.yml

@@ -0,0 +1,14 @@
+name: CI
+on:
+  push:
+  pull_request:
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Python tests
+        run: |
+          python3 -m pip install --upgrade pip
+          pip install pytest networkx numpy || true
+          if [ -d tests ]; then pytest -q; fi