[11.x] Run MySQL 9 Database Integration Tests nightly (#52027)

* Run MySQL 9 Database Integration Tests nightly

* Update workflow name

* Apply suggestions from code review

* Update .github/workflows/databases-nightly.yml

Co-authored-by: Julius Kiekbusch <[email protected]>

---------

Co-authored-by: Dries Vints <[email protected]>

.github/workflows/databases-nightly.yml

@@ -5,6 +5,50 @@ on:
     - cron: '0 0 * * *'
 
 jobs:
+  mysql_9:
+    runs-on: ubuntu-24.04
+
+    services:
+      mysql:
+        image: mysql:9
+        env:
+          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_DATABASE: laravel
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+
+    strategy:
+      fail-fast: true
+
+    name: MySQL 9
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.2
+          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, pdo_mysql, :php-psr
+          tools: composer:v2
+          coverage: none
+
+      - name: Set Framework version
+        run: composer config version "11.x-dev"
+
+      - name: Install dependencies
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 5
+          max_attempts: 5
+          command: composer update --prefer-stable --prefer-dist --no-interaction --no-progress
+
+      - name: Execute tests
+        run: vendor/bin/phpunit tests/Integration/Database
+        env:
+          DB_CONNECTION: mysql
 
   mariadb:
     runs-on: ubuntu-24.04

.github/workflows/databases.yml

@@ -70,7 +70,7 @@ jobs:
     strategy:
       fail-fast: true
 
-    name: MySQL 8.0
+    name: MySQL 8
 
     steps:
       - name: Checkout code