Fix all Sphinx reference warnings in the documentation (meta issue)

This supersedes the previous closed issue for this: https://github.com/python/cpython/issues/101100

I have created several sub-issues (see table below) to split the work up and avoid what happened the last time. This is the meta issue for this task, any general discussion on this topic should go here, not on the sub-issues, and vice-versa.

In each of the issues, I've added the current list of warnings. Note that the warnings themselves, and their line numbers may change.

There are some warnings that come up with no file:

<unknown>:922: c:type reference target not found: PyWeakReference [ref.type]
<unknown>:956: c:data reference target not found: Py_FileSystemDefaultEncodeErrors [ref.data]
<unknown>:957: c:data reference target not found: Py_FileSystemDefaultEncoding [ref.data]
<unknown>:970: c:data reference target not found: Py_HasFileSystemDefaultEncoding [ref.data]
<unknown>:1026: c:data reference target not found: Py_UTF8Mode [ref.data]
<unknown>:1037: c:type reference target not found: Py_intptr_t [ref.type]
<unknown>:1141: c:type reference target not found: Py_uintptr_t [ref.type]
<unknown>:1168: c:type reference target not found: ssizessizeargfunc [ref.type]
<unknown>:1169: c:type reference target not found: ssizessizeobjargproc [ref.type]
<unknown>:1170: c:type reference target not found: symtable [ref.type]

Linked PRs

• gh-153086

Comienza abriendo las sub-issues referenciadas en la meta issue y revisando sus listas de advertencias actuales; las advertencias y los números de línea pueden cambiar. Trabaja en las advertencias de referencia enumeradas, incluidos los destinos sin archivo, y considera terminado el trabajo cuando la compilación de la documentación de Sphinx no informe de advertencias de referencia restantes.