add CI configuration

.github/workflows/ci.yml

@@ -0,0 +1,49 @@
+name: CI
+
+on:
+- push
+- pull_request
+- workflow_dispatch
+
+jobs:
+  main:
+    strategy:
+      matrix:
+        include:
+        - python: 3.8
+        - python: 3.9
+        - python: '3.10'
+        - python: '3.11'
+        - python: '3.12-dev'
+    runs-on: ubuntu-latest
+    name: Python ${{ matrix.python }}
+    steps:
+    - uses: actions/checkout@v3
+    - name: set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python }}
+    - name: apt update
+      run:
+        sudo apt-get update
+    - name: update PIP
+      run:
+        python -m pip install --upgrade pip
+    - name: install wheel
+      run:
+        python -m pip install --upgrade wheel
+    - name: install package
+      run: |
+        python -m pip install .[dev,mypy]
+    - name: run tests
+      run:
+        python -m unittest discover --verbose --start-directory tests
+    - name: run flake8
+      run:
+        python -m flake8 .
+    - name: run black
+      run:
+        black --check --diff
+    - name: run mypy
+      run:
+        mypy brother_ql_web/ tests/