Fix maru version: v1.2.0 -> v1.2.1-20260410142843-d326b73

v1.2.0 tag doesn't exist on Docker Hub, causing compose build
failures on de-27, de-32, us-40. Using the actual tag format.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

op/geth/katana-testnet-op-geth-archive-leveldb-hash.yml

@@ -52,7 +52,7 @@ services:
     environment:
       - GETH_OVERRIDE_ISTHMUS=1749807000
       - GETH_ROLLUP_DISABLETXPOOLGOSSIP=true
-      - GETH_ROLLUP_SEQUENCERHTTP=https://rpc-bokuto.katanarpc.com
+      - GETH_ROLLUP_SEQUENCERHTTP=https://rpc.katana.network
     entrypoint: /bin/sh -c '[ ! -d /data/geth ] && geth --db.engine=leveldb --gcmode=archive --datadir /data init --state.scheme=hash /config/genesis.json; exec geth "$@"' --
     command:
       - --datadir=/data
@@ -62,7 +62,7 @@ services:
       - --metrics
       - --metrics.addr=0.0.0.0
       - --metrics.port=6060
-      - --networkid=737373
+      - --networkid=747474
       - --nodiscover
       - --rpc.gascap=600000000
       - --rpc.txfeecap=0
@@ -172,7 +172,7 @@ x-upstreams:
           frameSize: 20Mb
           msgSize: 50Mb
           url: $${WS_URL}
-    chain: katana-testnet
+    chain: katana
     method-groups:
       enabled:
         - debug