Build/Test Tools: Adjust the test for `wp_redirect()` status codes added in...

Build/Test Tools: Adjust the test for `wp_redirect()` status codes added in [46641] per the documentation and coding standards.

Move the test to a more appropriate place for consistency with `wp_sanitize_redirect()` and `wp_validate_redirect()` tests.

See #44317.
Built from https://develop.svn.wordpress.org/trunk@46649


git-svn-id: https://core.svn.wordpress.org/trunk@46449 1a063a9b-81f0-0310-95a4-ce76da25c4cd