dungeon-1 v9: SDK 0.53.7, ibc-go 10.7.0, IBC rate-limiting, 5% min-commission floor

{
  "@type": "/cosmos.upgrade.v1beta1.MsgSoftwareUpgrade",
  "authority": "dungeon10d07y265gmmuvt4z0w9aw880jnsr700j53vrug",
  "plan": {
    "name": "v9",
    "time": "0001-01-01T00:00:00Z",
    "height": "19252800",
    "info": "{\"binaries\":{\"linux/amd64\":\"https://github.com/Crypto-Dungeon/dungeonchain/releases/download/v9.0.0/dungeond?checksum=sha256:aa1a32201d4bfc3161130759c309d9e3314936314c8a87b7313110d3d6dc190c\"}}",
    "upgraded_client_state": null
  }
}