I18N: Add context to privacy request status strings.

These strings already have a context in `create_initial_post_types()`, and should use the same context in `_wp_privacy_statuses()`.

Props ramiy, audrasjb.
Fixes #50740.
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git-svn-id: https://core.svn.wordpress.org/trunk@48340 1a063a9b-81f0-0310-95a4-ce76da25c4cd