migrate tests to GHA

.github/dependabot.yml

@@ -0,0 +1,9 @@
+---
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+---
+name: Test
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+concurrency:
+  group: ${{ github.ref_name }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - none
+          - libconfig
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install pkg-config
+        run: sudo apt-get install -y pkg-config
+      - name: Install libconfig
+        if: matrix.config == 'libconfig'
+        run: sudo apt-get install -y libconfig-dev
+      - run: ./autogen.sh
+      - run: make