GitHub Actions mysql service not working (Access denied)

Question

I try to use GitHub actions to check the functionality of my application. I'm using the mysql service and want to set up a database with a SQL file named db_structure.sql. But as soon as I run the action, it just gives me a Access denied error message.

Here's my full workflow:

name: CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]
  workflow_dispatch:

jobs:
  cypress_testing:
    runs-on: ubuntu-latest
    
    services:
      mysql:
          image: mysql:5.7
          env:
              MYSQL_DATABASE: database
              MYSQL_USER: foo
              MYSQL_PASSWORD: bar
              MYSQL_ROOT_PASSWORD: bar
          ports:
              - 3306
          options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=5

    steps:
      - uses: actions/checkout@v2
      

      - name: Install dependencies
        run: npm install --save-dev
        
      - name: Create DB structure
        run: |
          sudo /lib/systemd/systemd-sysv-install enable mysql
          sudo systemctl enable mysql.service
          sudo systemctl start mysql.service
          sudo systemctl status mysql.service
          sudo mysql -h 127.0.0.1 -ufoo -pbar database < db_structure.sql

      # I would then run my tests here

And here is the full error message:

ERROR 1045 (28000): Access denied for user 'foo'@'localhost' (using password: YES)

I already tried adding -h 127.0.0.1 to the mysql command. I also tried starting the service before running the mysql command.

Thanks for your help in advance.