Add dependabot configuration + test workflow

Author: Jeroen de Graaf

.github/dependabot.yaml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: 'composer'
+    directory: '/'
+    schedule:
+      interval: 'daily'
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'daily'

.github/workflows/test.yaml

@@ -0,0 +1,30 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request: ~
+
+jobs:
+  test:
+    name: Test
+    strategy:
+      matrix:
+        php-version: ['8.3', '8.4']
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          tools: composer
+
+      - name: Install composer dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: Run tests
+        run: composer test