Add coverage in CI

Author: chapterjason

.github/workflows/ci.yml

@@ -65,4 +65,20 @@ jobs:
                 with:
                     php-version: ${{ matrix.php-version }}
             -   uses: ramsey/composer-install@v3
-            -   run: vendor/bin/phpunit
+            -   run: vendor/bin/phpunit
+    coverage:
+        name: Coverage
+        needs:
+            - dependency-validation
+        runs-on: ubuntu-latest
+        timeout-minutes: 5
+        steps:
+            -   uses: actions/checkout@v4
+            -   uses: shivammathur/setup-php@v2
+                with:
+                    php-version: 8.4
+            -   uses: ramsey/composer-install@v3
+            -   run: vendor/bin/phpunit --coverage-clover=coverage.xml
+            -   uses: codecov/codecov-action@v5
+                env:
+                    CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}