我正在尝试设置github CI工作流来做我的springboot应用程序测试。但是测试在数据库连接上失败了，尽管在本地它工作得很好。
CI作业如下

build:
# The type of runner that the job will run on
runs-on: ubuntu-latest

# Steps represent a sequence of tasks that will be executed as part of the job
steps:
  - uses: actions/checkout@v3
  - name: Prepare test database
    run: docker-compose -f docker-compose-test.yaml up -d
  - name: Wait for the database to start
    run: wget -qO- https://raw.githubusercontent.com/eficode/wait-for/$WAIT_FOR_VERSION/wait-for | sh -s -- localhost:55001 -- echo "Database is up"
    env:
      WAIT_FOR_VERSION: 4df3f9262d84cab0039c07bf861045fbb3c20ab7 # v2.2.3
  - name: Set up JDK 17
    uses: actions/setup-java@v3
    with:
      java-version: '17'
      distribution: 'temurin'
  - name: Validate Gradle wrapper
    uses: gradle/wrapper-validation-action@e6e38bacfdf1a337459f332974bb2327a31aaf4b

  - name: Make gradlew executable
    run: chmod +x gradlew

  - name: Build with Gradle
    run: ./gradlew build

Docker组合测试

services:
  db-test-database:
    image: mysql:5.5
    ports:
      - "55001:3306"
    environment:
      - MYSQL_ROOT_PASSWORD=my-secret-pw
      - MYSQL_DATABASE=dbTest
      - MYSQL_USER=root
      - MYSQL_PASSWORD=my-secret-pw

要在测试中配置数据库，我使用projectroot/test/resources/application.yml

spring:
 datasource:
   url: jdbc:mysql://localhost:55001/dbTest
   username: root
   password: my-secret-pw
   driver-class-name: com.mysql.cj.jdbc.Driver

但是冒烟测试（@SpringBootTest with autowire）失败，表明无法连接到数据库：

AppSmokeTest > contextLoads() FAILED
java.lang.IllegalStateException at DefaultCacheAwareContextLoaderDelegate.java:98
    Caused by: org.springframework.beans.factory.BeanCreationException at AbstractAutowireCapableBeanFactory.java:1804
        Caused by: javax.persistence.PersistenceException at AbstractEntityManagerFactoryBean.java:421
            Caused by: org.hibernate.exception.JDBCConnectionException at SQLStateConversionDelegate.java:112
                Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException at SQLError.java:174
                    Caused by: com.mysql.cj.exceptions.CJCommunicationsException at NativeConstructorAccessorImpl.java:-2
                        Caused by: java.net.ConnectException at Net.java:-2

谁能告诉我哪里出了问题？