base-sepolia: move reth and node version pins to v1.4.2

The tag ghcr.io/base/node:v1.1.1 does NOT exist (registry query returned
manifest unknown / HTTP 404 MANIFEST_UNKNOWN). With the repository
default now pointing at ghcr.io/base/node while the version pin still says
v1.1.1, base-sepolia currently resolves to an UNPULLABLE image reference,
breaking DEPLOY. v1.4.2 is the proven production image on base-mainnet
(carries Cobalt support, executed block 52000927) and resolves at
sha256:40e312a3f3aeb1b1599ad8d871aed20890cd0cd704be8633508694bad4f76abd.

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

op/erigon/base-sepolia-op-erigon-archive-trace.yml

@@ -106,7 +106,7 @@ services:
     shm_size: 2gb
 
   base-sepolia-op-erigon-node:
-    image: ${BASE_NODE_IMAGE:-ghcr.io/base/node}:${BASE_SEPOLIA_NODE_VERSION:-v1.1.1}
+    image: ${BASE_NODE_IMAGE:-ghcr.io/base/node}:${BASE_SEPOLIA_NODE_VERSION:-v1.4.2}
     ports:
       - 18487:18487
       - 18487:18487/udp