1.0.x crashes D10 due to 11 and contrib book

Problem/Motivation

https://www.drupal.org/project/book_pdf/issues/3428281#comment-15723005 📌 Automated Drupal 11 compatibility fixes for book_pdf Fixed

Proposed resolution

See my comment #3428281-04: Automated Drupal 11 compatibility fixes for book_pdf →

Remaining tasks

See proposed resolution

User interface changes

N/A

API changes

Avoid contrib book from D10

Data model changes

N/A