Add addresses 1.3.0 for chain HASHKEY_CHAIN_TESTNET (#1467)

* Add new explorer client URL: https://hashkeychain-testnet-explorer.alt.technology/api/v1/graphql

* Add new master copy address 0xd9Db270c1B5E3Bd161E8c8503c55cEABeE709552

* Add new master copy address 0x3E5c63644E683549055b9Be8653de26E0B4CD36E

* Add new proxy address 0xa6B71E26C5e0845f74c812102Ca7114b6a896AB2

* Apply linter fixes

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

safe_eth/eth/clients/blockscout_client.py

@@ -148,6 +148,7 @@ class BlockscoutClient:
         EthereumNetwork.PLUME_DEVNET: "https://test-explorer.plumenetwork.xyz/api/v1/graphql",
         EthereumNetwork.PLUME_MAINNET: "https://phoenix-explorer.plumenetwork.xyz/api/v1/graphql",
         EthereumNetwork.SWELL_NETWORK: "https://explorer.swellnetwork.io/api/v1/graphql",
+        EthereumNetwork.HASHKEY_CHAIN_TESTNET: "https://hashkeychain-testnet-explorer.alt.technology/api/v1/graphql",
     }
 
     def __init__(self, network: EthereumNetwork):

safe_eth/safe/addresses.py

@@ -1987,6 +1987,14 @@
         ("0x41675C099F32341bf84BFc5382aF534df5C7461a", 261807, "1.4.1"),  # v1.4.1
         ("0x29fcB43b46531BcA003ddC8FCB67FFE91900C762", 261813, "1.4.1+L2"),  # v1.4.1+L2
     ],
+    EthereumNetwork.HASHKEY_CHAIN_TESTNET: [
+        ("0xd9Db270c1B5E3Bd161E8c8503c55cEABeE709552", 4795480, "1.3.0"),  # v1.3.0
+        (
+            "0x3E5c63644E683549055b9Be8653de26E0B4CD36E",
+            4795470,
+            "1.3.0+L2",
+        ),  # v1.3.0+L2
+    ],
 }
 
 PROXY_FACTORIES: Dict[EthereumNetwork, List[Tuple[str, int]]] = {
@@ -2986,4 +2994,7 @@
         ("0xC22834581EbC8527d974F8a1c97E1bEA4EF910BC", 261536),  # v1.3.0
         ("0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67", 261762),  # v1.4.1
     ],
+    EthereumNetwork.HASHKEY_CHAIN_TESTNET: [
+        ("0xa6B71E26C5e0845f74c812102Ca7114b6a896AB2", 4795410),  # v1.3.0
+    ],
 }