plasma-mainnet: regenerate compose with IP env and --nat flag for observer

plasma/reth/plasma-mainnet-reth-pruned-trace.yml

@@ -197,6 +197,8 @@ services:
     expose:
       - 35070
       - 9001
+    environment:
+      - IP=${IP}
     entrypoint: [/bin/bash, -c]
     command:
       - |
@@ -211,6 +213,7 @@ services:
           --config-path /tmp/non-validator.toml \
           --no-color \
           --timeout-stream-manager 5s \
+          --nat=extip:${IP}:18415 \
           --telemetry.enable-metrics \
           --telemetry.enable-health \
           --telemetry.host 0.0.0.0 \