Include more recent multi-threading results.

[vincehong]

The original paper said "we observe a 30x speedup for Kreyvium-CGGI transciphering using 64 threads,
versus 20x for AES-CKKS". This might be outdated. Check if the winning solutions in Zama's bounty program Season 7 have better multi-threading implementations.

[nc26676027]

We evaluated the core‑binding method in Zama’s Bounty Program (Season 7) and found that it can achieve more than a 20‑fold multi‑threading speed‑up in TFHE‑based transciphering.
We will update the current results related to this advancement.