init: zero-dep dns-over-https resolver

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: ci
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: pip install -e .[dev]
+      - run: pytest
+      - run: python -m build
+      - run: python -m twine check dist/*