add mysql to ci

Author: jbr

.github/workflows/ci.yaml

@@ -10,6 +10,8 @@ env:
   RUSTFLAGS: -Dwarnings
   POSTGRES_DB: async_sqlx_session_tests
   PG_TEST_DB_URL: postgres://postgres:postgres@localhost/async_sqlx_session_tests
+  MYSQL_DB: async_sqlx_session_tests
+  MYSQL_TEST_DB_URL: mysql://root@localhost/async_sqlx_session_tests
 
 jobs:
   build_and_test:
@@ -33,6 +35,19 @@ jobs:
         ports:
           - 5432:5432
 
+      mysql:
+        image: mysql
+        env:
+          MYSQL_ROOT_PASSWORD: root
+          MYSQL_DATABASE: async_sqlx_session_tests
+        ports:
+          - 3306:3306
+        options: >-
+          --health-cmd "mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 3
+
     steps:
     - uses: actions/checkout@main