ENH: Update Build Software (jb==1.04) and anaconda=2025.05

[mmcky]

This PR

• update to use the latest jupyter-book=1.04post1 build, which should be the latest build before jb2
• updates to anaconda==2025.06 which uses python=3.13

the software fixes in quantecon-book-theme enables us to use the latest version of sphinx with jb1 to give us two pathways for upgrading to the latest anaconda.

We will switch to jb2 once all features we require are supported.

This comes packaged with some nice upgrades to the pdf around exercises.

• update quantecon.manual with restrictions around use of figures nested inside other directives like solution and exercise nodes for pdf generation. We need to use image instead as figure cause latex to fail in the new mini-page environment used for exercises (c526af5)
• run a full test build (remove execution cache)
• update sphinx-tojupyter==0.3.1

[github-actions]

🚀 Deployed on https://6881a85439b9210c7bb47c9f--epic-agnesi-957267.netlify.app

[mmcky]

@kp992 would you have time to double check this build looks good on your end? There are a lot of software changes going on here with the various updates. It is looking good to me, but if you spot any regressions that would be useful to know.

https://6881a00889e1d06b90fae1ac--epic-agnesi-957267.netlify.app/

[kp992]

This looks great. Thanks @mmcky. I verified the 3 lecture updates and looks fine to me.