Add github related config files

.github/dependabot.yaml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: monthly
+  - package-ecosystem: pip
+    directory: /
+    schedule:
+      interval: monthly

.github/workflows/ci.yaml

@@ -0,0 +1,54 @@
+name: Test, build and create releases.
+on:
+  push:
+      branches:
+          - 'main'
+      tags:
+          - 'v[0-9]+.[0-9]+.[0-9]+'
+  pull_request:
+      branches:
+          - 'main'
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Test project
+    strategy:
+      matrix:
+        os:
+          - "windows-latest"
+          - "ubuntu-latest"
+          - "macos-latest"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup pdm
+        uses: pdm-project/setup-pdm@v4
+      - name: Install dependencies
+        run: pdm install --dev --group=uvloop
+      - name: Test project
+        run: pdm run pytest
+
+  build-and-release:
+    name: Build project and release if needed
+    runs-on: "ubuntu-latest"
+    needs: "test"
+    permissions:
+      contents: "write"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup pdm
+        uses: pdm-project/setup-pdm@v4
+      - name: Install dependencies
+        run: pdm install --dev --group=uvloop
+      - name: Build project
+        run: pdm build
+      - name: Release
+        if: github.ref_type  == 'tag'
+        uses: softprops/action-gh-release@v2
+        with:
+          files: "dist/*"
+          generate_release_notes: true
+          fail_on_unmatched_files: true