Add pinax service endpoints (firehose, substreams, rpc) for linea (#225)

Author: Johnaverse

registry/eip155/linea.json

@@ -8,16 +8,17 @@
   "explorerUrls": ["https://lineascan.build"],
   "rpcUrls": [
     "https://rpc.linea.build",
-    "https://linea-mainnet.infura.io/v3/${INFURA_API_KEY}"
+    "https://linea-mainnet.infura.io/v3/${INFURA_API_KEY}",
+    "https://linea.rpc.service.pinax.network"
   ],
   "apiUrls": [
     { "url": "https://linea.abi.pinax.network/api", "kind": "etherscan" },
     { "url": "https://api-explorer.linea.build/api", "kind": "blockscout" }
   ],
   "services": {
     "subgraphs": ["https://api.studio.thegraph.com/deploy"],
-    "firehose": [],
-    "substreams": []
+    "firehose": ["linea.firehose.pinax.network:443"],
+    "substreams": ["linea.substreams.pinax.network:443"]
   },
   "networkType": "mainnet",
   "relations": [{ "kind": "l2Of", "network": "mainnet" }],