aztec-testnet: bump to 4.3.1 (network redeployed, 3.0.2 genesis incompatible) + regen drift

Aztec testnet rollup was redeployed on Sepolia; 3.0.2 computes the old
genesis archive root and crash-loops. 4.3.1 matches the deployed rollup
and bootstraps from snapshot. Verified live on rpc-de-13.

Includes regen drift from current templates for other stale compose files.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

compose_registry.json

@@ -6384,6 +6384,23 @@
       "ronin-saigon-op-reth-archive-trace_eigenda-proxy"
     ]
   },
+  {
+    "chain": "saigon",
+    "client": "reth",
+    "compose_file": "op/reth/ronin-saigon-op-reth-pruned-trace",
+    "features": [
+      "trace"
+    ],
+    "network": "ronin",
+    "node": "node",
+    "relay": "eigenda-proxy",
+    "stack": "op",
+    "type": "pruned",
+    "volumes": [
+      "ronin-saigon-op-reth-pruned-trace",
+      "ronin-saigon-op-reth-pruned-trace_eigenda-proxy"
+    ]
+  },
   {
     "chain": "mainnet",
     "client": "reth",