Protected containers: Update protection rules in project settings ui

What does this MR do and why?

• Adding option to update the protection rule
• Sending a graphql mutation "updateContainerRegistryProtectionRule" when access level for push protection changes
• Adding an alert when the graphql mutation is not successful
• Adding tests

🛠 with ❤ at Siemens

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

MR Checklist (@gerardo-navarro)

• Changelog entry added, if necessary
• Documentation created/updated via this MR
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the javascript style guides
• Conforms to the database guides

Screenshots or screen recordings

Here you can see the newly added select boxes in order to update the attributes push_protected_up_to_access_level and delete_protected_up_to_access_level.

Before	After

How to set up and validate locally

1. Enable Registry by editting config/gitlab.yml with the following setting

registry:
  enabled: true

2. Restart GDK, see also https://docs.gitlab.com/ee/administration/packages/container_registry.html#configure-container-registry-under-an-existing-gitlab-domain

gdk restart

3. In rails console enable the experiment fully

Feature.enable(:container_registry_protected_containers)

4. Create some container protection rules to show in the table

15.times { |i| ContainerRegistry::Protection::Rule.create(project: Project.find(7), repository_path_pattern: "flightjs/flight#{i}", push_protected_up_to_access_level: :maintainer, delete_protected_up_to_access_level: :developer) }

5. Go to http://gdk.test:3000/flightjs/Flight/-/settings/packages_and_registries
6. Start updating the existing container protection rules

Related to #441345 (closed)