feat: bump up cometbft v0.38.11

[jasonsong0]

Description

There was a bug that invalid txs_results returned for legacy ABCI response. (ref: link)

This patch updated cometbft version from v0.38.9 to v0.38.11 to fix the bug. (commits)
but use the cosmos-sdk version v0.50.8 as is.

fixed problem

• eth_getLog returns block bloom event not found error for v7 blocks
• method handler crashed error when querying a tx with v7 block

how to test

• Querying eth_getLogs including v7 blocks

curl -X POST http://127.0.0.1:8545 -H "Content-Type: application/json" --data '{
"jsonrpc":"2.0",
"method":"eth_getLogs",
"params":[{
    "fromBlock": "0xa58679",
    "toBlock": "0xa5886c"
}],
"id":1
}'

• Querying txid in v7 block

 curl -X POST http://127.0.0.1:8545 -H "Content-Type: application/json" --data '{
  "jsonrpc":"2.0",
  "method":"eth_getTransactionReceipt",
  "params":["0xd2a769b1531d6a6353e166cd8f992cd3eafe5d90213e754cbddef8d8db0be9a8"],
  "id":1                    
}'

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