Create a run_tests Action

.github/workflows/run_tests.yml

@@ -0,0 +1,25 @@
+name: Run tests
+
+on: [push,workflow_dispatch]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Setup Miniconda
+      uses: conda-incubator/[email protected]
+      with:
+        python-version: '3.10'
+        channels: conda-forge
+        miniforge-version: "latest"
+
+    - name: Install tox
+      shell: bash -el {0}
+      run: mamba install tox
+
+    - name: Test with tox
+      shell: bash -el {0}
+      run: tox