ci: use reusable PHP test workflow from core/php

Replaces inline workflow with shared workflow call.

Co-Authored-By: Charon <charon@lethean.io>

.forgejo/workflows/ci.yml

@@ -8,31 +8,6 @@ on:
 
 jobs:
   tests:
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: true
-      matrix:
-        php: [8.3, 8.4]
-
-    name: PHP ${{ matrix.php }}
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup PHP
-        uses: https://github.com/shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php }}
-          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite
-          coverage: pcov
-
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-interaction --no-progress
-
-      - name: Run Pint
-        run: vendor/bin/pint --test
-
-      - name: Run tests
-        run: vendor/bin/pest --ci --coverage
+    uses: core/php/.forgejo/workflows/php-test.yml@main
+    with:
+      coverage: true