fix(iota-indexer): get object packages

[sergiupopescu199]

Description of change

Fix the ability to get package objects in the indexer's ReadApi get_object RPC function

Links to any relevant issues

#3587

Type of change

• Bug fix (a non-breaking change which fixes an issue)

How the change has been tested

Start a postgres instance

start the local network

cargo run --bin iota  --features indexer -- start --force-regenesis

make the RPC query

curl --location 'localhost:9124' \
--header 'Content-Type: application/json' \
--data '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "iota_getObject",
    "params": [
        "0x2",
        {
            "showType": true,
            "showContent": true,
            "showOwner": true,
            "showPreviousTransaction": true,
            "showStorageRebate": true,
            "showDisplay": true
        }
    ]
}'

Change checklist

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code

[lzpap]

Tried locally and works, thanks!