Add dependabot config and GitHub action for running tests

.github/dependabot.yml

@@ -0,0 +1,21 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "composer"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    target-branch: "main"
+    # Allow up to 5 open pull requests for composer dependencies
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "Composer"
+      include: "scope"
+    labels:
+      - "composer"
+      - "dependencies"
+

.github/workflows/run-tests.yml

@@ -0,0 +1,50 @@
+
+name: run-tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        php: [8.2, 8.3, 8.4]
+        dependencies: [lowest, highest]
+        stability: [prefer-lowest, prefer-stable]
+
+    name: P${{ matrix.php }} - ${{ matrix.stability }} - ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: intl
+          coverage: pcov
+      - name: Setup problem matchers
+        run: |
+          echo "::add-matcher::${{ runner.tool_cache }}/php.json"
+          echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+      - name: Install dependencies
+        run: composer update --${{ matrix.stability }} --prefer-dist --no-interaction
+      - name: Execute tests
+        run: vendor/bin/phpunit --coverage-clover=coverage.xml
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage.xml
+          flags: tests
+          name: codecov-umbrella
+          #yml: ./codecov.yml
+          fail_ci_if_error: true
+