Update dependency rspec-rails to v6.1.3

.github/workflows/tests.yml

@@ -1,34 +0,0 @@
-name: Run unit tests
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-jobs:
-  unit_tests:
-    runs-on: ubuntu-latest
-    services:
-      postgres:
-        image: postgres
-        env:
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-        ports:
-          - 5432
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: ruby/setup-ruby@v1
-      - run: bundle install
-      - run: |
-          bundle exec rake db:create db:schema:load
-          bundle exec rspec
-        env:
-          RAILS_ENV: test
-          DATABASE_URL: postgres://postgres:postgres@postgres:5432/postgres