add github actions

.github/dependabot.yaml

@@ -0,0 +1,9 @@
+version: 2
+updates:
+- package-ecosystem: pip
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "13:00"
+  open-pull-requests-limit: 10
+  versioning-strategy: auto

.github/workflows/ci.yaml

@@ -0,0 +1,25 @@
+name: continuous-integration
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt -r requirements-dev.txt
+    - name: Test
+      run: |
+        pwd
+        export PYTHONPATH=".":$PYTHONPATH
+        make github-test