wp_die() updates for the Plugins component

[CallumBW95]

Update wp_die() to include status codes where appropriate within files related to the Plugins component

Trac ticket: #64024

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

[github-actions]

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[github-actions]

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[nikunj8866]

@CallumBW95 Could you please sync the latest wordpress-develop and then merge trunk into this branch? That might help resolve the PHPUnit test checks.

[nikunj8866]

LGTM!