Add Humanity chain node profile (arb/humanity)

- Add Arbitrum Orbit L2 chain Humanity with nitro client
- Mainnet chain-id: 13600000, testnet chain-id: 7080969
- Generate pruned-pebble-hash and pruned-pebble-hash.prune variants
- Use offchainlabs/nitro-node:v3.11.2-3599aca
- Parent chain: Arbitrum One (l1: one, l1_network_name: arbitrum)

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

compose_registry.json

@@ -607,6 +607,42 @@
       "everclear-mainnet-nitro-pruned-pebble-path"
     ]
   },
+  {
+    "chain": "mainnet",
+    "client": "nitro",
+    "compose_file": "arb/nitro/humanity-mainnet-nitro-pruned-pebble-hash",
+    "drpc_chain": "humanity",
+    "features": [
+      "hash",
+      "pebble"
+    ],
+    "network": "humanity",
+    "node": null,
+    "relay": null,
+    "stack": "arb",
+    "type": "pruned",
+    "volumes": [
+      "humanity-mainnet-nitro-pruned-pebble-hash"
+    ]
+  },
+  {
+    "chain": "testnet",
+    "client": "nitro",
+    "compose_file": "arb/nitro/humanity-testnet-nitro-pruned-pebble-hash",
+    "drpc_chain": "humanity-testnet",
+    "features": [
+      "hash",
+      "pebble"
+    ],
+    "network": "humanity",
+    "node": null,
+    "relay": null,
+    "stack": "arb",
+    "type": "pruned",
+    "volumes": [
+      "humanity-testnet-nitro-pruned-pebble-hash"
+    ]
+  },
   {
     "chain": "sepolia",
     "client": "nitro",