How allow latest WLJS Notebook.app to run under macOS Sonoma

I just downloaded a more recent version, 0.7.0, of M1 WLJS Notebook.app under macOS Sonoma (14.3). When I try to open it, I get an error message from the OS that it is damaged and cannot be opened.

How to fix?

You should report the problem on the GitHub repository for WLJS.