Update manual job message for protected jobs

What does this MR do and why?

Related to #346796 (closed)

It changes the message for manual jobs that have protected environments when the users don't have the permissions to trigger those jobs.

Screenshots or screen recordings

Before:

After:

How to set up and validate locally

1. Create a new project
2. Configure the CI to have a manual job with an environment
3. Set up protected environments to maintainers only https://docs.gitlab.com/ee/ci/environments/protected_environments.html#protecting-environments
4. Create a new pipeline
5. Invite a user to the project as a developer
6. Login as the developer and go to the deployment job
7. The developer should see the new message

MR acceptance checklist

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