chore: update network subgraph endpoints for testnet

Signed-off-by: Tomás Migone <[email protected]>

Author: tmigone

docs/networks/arbitrum-sepolia.md

@@ -51,8 +51,8 @@ testnet (for now) are Mainnet subgraphs. This means:
 | `INDEXER_AGENT_INDEXER_GEO_COORDINATES`     | `--indexer-geo-coordinates`     | Geo coordinates of testnet indexer infrastructure                                                                       |
 | `INDEXER_AGENT_MNEMONIC`                    | `--mnemonic`                    | Ethereum mnemonic for testnet operator                                                                                  |
 | `INDEXER_AGENT_GATEWAY_ENDPOINT`            | `--gateway-endpoint`            | `https://gateway-arbitrum.testnet.thegraph.com/`                                                                        |
-| `INDEXER_AGENT_NETWORK_SUBGRAPH_DEPLOYMENT` | `--network-subgraph-deployment` | `QmXnGVrg6DvscnvJd86aHAPLGyGrkM17weMrAsFAEMmQLL`                                                                        |
-| `INDEXER_AGENT_NETWORK_SUBGRAPH_ENDPOINT`   | `--network-subgraph-endpoint`   | `https://gateway-arbitrum.network.thegraph.com/api/[api-key]/subgraphs/id/3xQHhMudr1oh69ut36G2mbzpYmYxwqCeU6wwqyCDCnqV` |
+| `INDEXER_AGENT_NETWORK_SUBGRAPH_DEPLOYMENT` | `--network-subgraph-deployment` | `QmU2HFM9KAqTs8RaGedFXj22qChew27DxRu6jH5shiV7XK`                                                                        |
+| `INDEXER_AGENT_NETWORK_SUBGRAPH_ENDPOINT`   | `--network-subgraph-endpoint`   | `https://gateway-arbitrum.network.thegraph.com/api/[api-key]/subgraphs/id/eAENt2ctaMdbCY34apzXYkBy2nEYwyojjVxLahsHo9D` |
 | `INDEXER_AGENT_EPOCH_SUBGRAPH_DEPLOYMENT`   | `--epoch-subgraph-deployment`   | `QmNNn48AU8CZei8sYLXrXABMHkiXAuQDvFaZHYYPryKEvF`                                                                        |
 | `INDEXER_AGENT_EPOCH_SUBGRAPH_ENDPOINT`     | `--epoch-subgraph-endpoint`     | `https://gateway-arbitrum.network.thegraph.com/api/[api-key]/subgraphs/id/BhnsdeZihU4SuokxZMLF4FQBVJ3jgtZf6v51gHvz3bSS` |
 | `INDEXER_AGENT_TAP_SUBGRAPH_DEPLOYMENT`     | `--tap-subgraph-deployment`     | `QmUiLdbsk6c51UMdcNBxsP3KadJpkmp6a3k2NCprR4ZFeM`                                                                        |