Tests: Update `wp_add_inline_script()` unit tests to account for the `jquery`...

Tests: Update `wp_add_inline_script()` unit tests to account for the `jquery` handle being an alias for `jquery-core` again.

Follow-up to [48323], [48324], [48890].

Props davidbaumwald, audrasjb.
Merges [48892] to the 5.5 branch.
See #50919.
Built from https://develop.svn.wordpress.org/branches/5.5@48893


git-svn-id: https://core.svn.wordpress.org/branches/5.5@48655 1a063a9b-81f0-0310-95a4-ce76da25c4cd