feat(mypy): mypy gh action

.github/workflows/mypy.yaml

@@ -0,0 +1,41 @@
+name: MyPy
+
+on: pull_request
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  mypy:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        pyversion: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+
+    steps:
+    - name: Checkout
+      uses: actions/[email protected]
+      with:
+        fetch-depth: 0
+        persist-credentials: false
+
+    - name: Setup Python (faster than using Python container)
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.pyversion }}
+
+    - name: Install Poetry
+      uses: snok/install-poetry@v1
+
+    - name: Add Poetry to PATH on Windows
+      if: runner.os == 'Windows'
+      run: $env:Path += ";$env:USERPROFILE\.poetry\bin"
+
+    - name: Install Dependencies
+      run: poetry install --no-interaction
+
+    - name: Run MyPy
+      run: make mypy