Pantone na última versão do Illustrator

If you have a Photoshop license, please install Photoshop 22.2.
Then, open Photoshop 2021 Application folder > Presets > Color Books and you will find the PANTONE color books, so copy it to Illustrator's Color Books folder.

There is still one version that you can download that has the libraries.

Install the older version of Illustrator: 2023 (27.0), this is the last version that has the old Pantone Color books

In the Creative Cloud app select Apps > All Apps > Illustrator > click the 3 dots …  next to the Open button >  click Other Versions and select 27.0

Go the Illustrator 2023 Application folder > Presets > (your language folder) > Swatches > Color Books > and make a copy of PANTONE+ Solid Coated.acb and PANTONE+ Solid Uncoated.acb 

Keep them in a safe place and copy them to the same location in the Illustrator 2024 application folder.

You can no longer download an Illustrator version that has the spot color libraries installed.

You can try and ask for version 2022 or earlier at Customer Care and maybe they give it to you. There are libraries for download on the web as well, but they are not official, probably illegal and probably infected.

Or do you still have version 2022 or earlier. Then you can grab the libraries from that version (in the application folder/Presets/libraries) and then copy them over to the new version and also make a backup.

You need to ask program questions in the forum for the program you are using
To ask in the forum for your program please start at https://community.adobe.com/
Moving from Using the Community (which is about the forums) to the correct forum