[indexer] Index only finalized blocks for polkadot asset hub (#720)

Author: Wizdave97

sdk/packages/indexer/docker/docker-compose.local.yml

@@ -179,7 +179,7 @@ services:
             retries: 10
 
     graphql-engine:
-        image: subquerynetwork/subql-query:v2.21.0
+        image: polytopelabs/omnihedron:latest
         restart: always
         ports:
             - 3100:3000

sdk/packages/indexer/src/configs/config-testnet.json

@@ -117,7 +117,7 @@
 		"chainId": "420420417",
 		"startBlock": 4749233,
 		"stateMachineId": "EVM-420420417",
-		"blockConfirmations": 5,
+		"unfinalizedBlocks": false,
 		"contracts": {
 			"ethereumHost": "0xbb26e04a71e7c12093e82b83ba310163eac186fa",
 			"handlerV1": "0x8b31a195c98ead34cf463a66f52942b6145a68a2",