Fixes error when migrating with custom table name.
Migrating: 2019_11_29_000005_make_slug_locale_published_parent_id_pair_unique
Illuminate\Database\QueryException
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'app.nova_page_manager_pages' doesn't exist (SQL: SHOW KEYS FROM nova_page_manager_pages WHERE Key_name LIKE "nova_page_manager_pages%"
Fixes error when migrating with custom table name.