feat: ci: replace travis by github workflows

.github/workflows/ci.yml

@@ -0,0 +1,45 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9, '3.10']
+
+    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 tox tox-gh-actions coveralls
+        pip install -r requirements-test.txt
+    - name: Test with tox
+      run: |
+        tox
+    - name: Upload coverage data to coveralls.io
+      run: coveralls --service=github
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        COVERALLS_FLAG_NAME: ${{ matrix.python-version }}
+        COVERALLS_PARALLEL: true
+
+  coveralls:
+    name: Indicate completion to coveralls.io
+    needs: build
+    runs-on: ubuntu-latest
+    container: python:3-slim
+    steps:
+      - name: Finished
+        run: |
+          pip3 install --upgrade coveralls
+          coveralls --service=github --finish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}