Build: Create a PR to Cmake to fix ExternalProject download error code 35

[xavisolesoft]

Sometimes, cmake FetchContent and ExternalProject downloads fail due the next error code:

status_code: 35
status_string: "SSL connect error"

This error happens specially with StreetMap repo.

Cmake is not detecting internally this error as retriable, so retry policy is not applied and this causes the build to fail.
Seems a common retriable error for github repo .zip download, so we should fork Cmake for now while we create a PR to Cmake to fix it.

The fix consists on adding 35 to the retry codes list in this file:
Modules/ExternalProject/download.cmake.in

[xavisolesoft]

Created the PR:
https://gitlab.kitware.com/cmake/cmake/-/merge_requests/9464