CircleCIでRSpecのテスト実行できない

掲題の通りです。
以下のようなエラーになります。

bash
1#!/bin/bash --login
2bundle exec rake db:create
3bundle exec rake db:schema:load
4
5I, [2021-04-20T08:36:32.197469 #9588]  INFO -- sentry: ** [Raven] Raven 2.9.0 configured not to capture errors: Not configured to send/capture in environment 'default'
6rake aborted!
7Mysql2::Error::ConnectionError: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
8/home/ubuntu/Hardreggaecafe/vegewel/vendor/bundle/ruby/2.5.0/gems/mysql2-0.5.2/lib/mysql2/client.rb:90:in `connect'
9/home/ubuntu/Hardreggaecafe/vegewel/vendor/bundle/ruby/2.5.0/gems/mysql2-0.5.2/lib/mysql2/client.rb:90:in `initialize'
10

記載した.circleci/config.ymlです。

yaml
1version: 2
2jobs:
3  build:
4    working_directory: ~/Hardreggaecafe/vegewel
5    parallelism: 1
6    shell: /bin/bash --login
7    environment:
8      CIRCLE_ARTIFACTS: /tmp/circleci-artifacts
9      CIRCLE_TEST_REPORTS: /tmp/circleci-test-results
10    docker:
11    - image: circleci/build-image:ubuntu-14.04-XXL-upstart-1189-5614f37
12    - image: circleci/ruby:2.5.0-node-browsers
13      environment:
14        - BUNDLER_VERSION: 1.16.1
15        - RAILS_ENV: 'test'
16    - image: circleci/mysql:5.7
17      environment:
18        - MYSQL_ALLOW_EMPTY_PASSWORD: 'true'
19        - MYSQL_ROOT_HOST: '127.0.0.1'
20    steps:
21      - run: mkdir -p $CIRCLE_ARTIFACTS $CIRCLE_TEST_REPORTS
22      - run:
23          working_directory: ~/Hardreggaecafe/vegewel
24          command: pip install pip==20.3.4
25      - run:
26          working_directory: ~/Hardreggaecafe/admin-vegewel
27          command: pip install urllib3==1.26
28      - run:
29          working_directory: ~/Hardreggaecafe/vegewel
30          command: pip install awsebcli --upgrade --user
31      - checkout
32      - run:
33          name: install dependencies
34          command: |
35            gem install bundler -v 2.0.2
36            bundle install --jobs=4 --retry=3 --path vendor/bundle
37      # Database setup
38      - run: mv ./config/database.yml.ci ./config/database.yml
39      - run:
40          name: Databasesetup
41          command: |
42             bundle exec rake db:create
43             bundle exec rake db:schema:load
44
45      # run tests!
46      - run:
47          name: Run rspec
48          command: |
49            mkdir /tmp/test-results
50            TEST_FILES="$(circleci tests glob "spec/**/*_spec.rb" | \
51              circleci tests split --split-by=timings)"
52
53            bundle exec rspec \
54              --format progress \
55              --format RspecJunitFormatter \
56              --out /tmp/test-results/rspec.xml \
57              --format progress \
58              $TEST_FILES
59
60      # collect reports
61      - store_test_results:
62          path: /tmp/test-results
63      - store_artifacts:
64          path: /tmp/test-results
65          destination: test-results
66
67      - run:
68          name: Deploy
69          command: |
70            if [ "${CIRCLE_BRANCH}" == "master" ]; then
71              echo "Deploy production"
72              eb deploy Vegewel-production
73            else
74              echo "Deploy staging"
75              eb deploy vegewel-staging
76            fi
77
78workflows:
79  version: 2
80  build-n-deploy:
81    jobs:
82      - build:
83          filters:
84            branches:
85              only:
86                - staging
87                - master
88