The method eth_getLogs does not support blockHash param

[bz888]

When making a rpc query to https://rpc.ankr.com/xdc

{
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
        {
            "blockHash": "0xdc480998d4335c61fe5d32802b455a6fc5fa8c08e1b55ebd4c9229adde15e99c"
        }
    ],
    "id": 1
}

it would return the log for the latest block instead of the blockHash provided in the param.
if this is expected result then https://www.ankr.com/docs/rpc-service/chains/chains-api/xdc/#parameters-27 should be updated.

[gzliudan]

Same with #179.

[gzliudan]

This issue is fixed by PR #486, #490, #491. We are testing on devnet now, will move to testnet later.