updated op reth version

Author: krofax

pages/notices/pectra-changes.mdx

@@ -63,7 +63,7 @@ Node operators will need to upgrade to the respective releases before the activa
 
 *   `op-node` at [`v1.11.1`](https://github.com/ethereum-optimism/optimism/releases/tag/op-node%2Fv1.11.1)
 *   `op-geth` at [`v1.101500.0`](https://github.com/ethereum-optimism/op-geth/releases/tag/v1.101500.0)
-*   `op-reth` at [`v1.1.5`](https://github.com/paradigmxyz/reth/releases/tag/v1.1.5) also includes L1 Pectra support.
+*   `op-reth` at [`v1.2.0`](https://github.com/paradigmxyz/reth/releases/tag/v1.2.0) also includes L1 Pectra support.
 
 ## For chain operators