Create list of CVE reproducers

Create separate page with a list of CVE reproducers. Generated in [`doc/conf.py`](https://github.com/linux-test-project/ltp/blob/d09ba862f5e855e6fb48b8086eb3ac485fe7995b/doc/conf.py), similarly to `generate_syscalls_stats`.

https://lore.kernel.org/ltp/aJsu4qw72EZiKnSP@yuki.lan/
https://lore.kernel.org/ltp/20250812114540.GC843668@pevik/