fix: blockscout fix for json variant (ethereum#662)

Author: barnabasbusa

src/blockscout/blockscout_launcher.star

@@ -2,7 +2,7 @@ shared_utils = import_module("../shared_utils/shared_utils.star")
 constants = import_module("../package_io/constants.star")
 postgres = import_module("github.com/kurtosis-tech/postgres-package/main.star")
 
-IMAGE_NAME_BLOCKSCOUT = "blockscout/blockscout:6.0.0"
+IMAGE_NAME_BLOCKSCOUT = "blockscout/blockscout:6.6.0"
 IMAGE_NAME_BLOCKSCOUT_VERIF = "ghcr.io/blockscout/smart-contract-verifier:v1.6.0"
 
 SERVICE_NAME_BLOCKSCOUT = "blockscout"
@@ -121,7 +121,9 @@ def get_config_backend(
             'bin/blockscout eval "Elixir.Explorer.ReleaseTasks.create_and_migrate()" && bin/blockscout start',
         ],
         env_vars={
-            "ETHEREUM_JSONRPC_VARIANT": el_client_name,
+            "ETHEREUM_JSONRPC_VARIANT": "erigon"
+            if el_client_name == "erigon" or el_client_name == "reth"
+            else el_client_name,
             "ETHEREUM_JSONRPC_HTTP_URL": el_client_rpc_url,
             "ETHEREUM_JSONRPC_TRACE_URL": el_client_rpc_url,
             "DATABASE_URL": database_url,