[clang] [sanitizer] Document AddressSanitizer security considerations (PR #100937)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

This applies as well to MemorySanitizer, ThreadSanitizer, LeakSanitizer, HWAddressSanitizer, more or less UBSan with diagnostics. Would you like to update those as well?

https://github.com/llvm/llvm-project/pull/100937