Ignore fields with :SKIP: when comparing JSON

What does this MR do?

1. Use include_json(expected) instead of eql(expected) when comparing JSON.

2. Monkeypatch the RSpec::JsonExpectations gem so it returns true when comparing fields containing the string :SKIP:.

3. Remove sorting in the GitlabSecure::IntegrationTest::Comparable module from the following fields:

   • vulnerabilities
   • dependency_files
   • dependencies
   • remediations

   Sorting has been removed from these fields because it's already implemented in the report package.

What are the relevant issue numbers?

Update integration-test project to skip fields ... (gitlab-org/gitlab#336332 - closed)

Testing

• gemnasium
• semgrep