[BUG] cv_examples.pdf and probably other PDFs have broken references ("??" instead of number)

### Current Behavior:

The file "CV_examples.pdf" as publish on the [release page](https://github.com/LLNL/sundials/releases/download/v7.1.1/cv_examples.pdf) has broken references. You finde "see §??", where "??" should be the number of the section that is referenced.

### Expected Behavior:

The PDF documents should have correct internal references.

### Steps To Reproduce:

(not applicable)

### Environment:

- SUNDIALS version: 7.1.1

### Anything else:

This is a typical latex issue. usually, a second latex run fixes this issue Probably the build process for the PDFs needs to be fixed.