Moved reusable ci tests workflow to workflows folder

.github/workflows/ci-tests.yml

@@ -0,0 +1,43 @@
+name: Tests
+
+on:
+  workflow_call:
+    inputs:
+      test-group:
+        type: string
+        required: true
+        description: One of unit, api or cli
+
+jobs:
+  tests:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        php-version: ['8.1']
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Start postgres database server
+        if: ${{ inputs.test-group == 'api' }}
+        run: docker-compose -f docker-compose.yml -f docker-compose.ci.yml up -d shlink_db_postgres
+      - name: Start maria database server
+        if: ${{ inputs.test-group == 'cli' }}
+        run: docker-compose -f docker-compose.yml -f docker-compose.ci.yml up -d shlink_db_maria
+      - name: Use PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          tools: composer
+          extensions: openswoole-4.11.1
+          coverage: pcov
+          ini-values: pcov.directory=module
+      - name: Install dependencies
+        run: composer install --no-interaction --prefer-dist
+      - run: composer test:${{ inputs.test-group }}:ci
+      - uses: actions/upload-artifact@v2
+        if: ${{ matrix.php-version == '8.1' }}
+        with:
+          name: coverage-${{ inputs.test-group }}
+          path: |
+            build/coverage-${{ inputs.test-group }}
+            build/coverage-${{ inputs.test-group }}.cov