chore: update gov metadata length from 256 to 10200

[PaddyMc]

What is the purpose of the change

Update the metadata length to 10200, to enable longer summaries and titles for gov proposals

see:
https://github.com/osmosis-labs/cosmos-sdk/blob/osmo/v0.47.5/x/gov/keeper/proposal.go#L17-L32

&&

https://github.com/osmosis-labs/cosmos-sdk/blob/osmo/v0.47.5/x/gov/keeper/keeper.go#L222-L229

Testing and Verifying

• start a node and submit a gov transaction with longer metadata

BASE64_METADATA=$(echo -n '{
	"authors": [""],
	"details": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
	"proposal_forum_url": "",
	"vote_option_context": ""
}' | base64 -w 0)

echo '{
  "messages": [
    {
      "@type": "/cosmos.bank.v1beta1.MsgSend",
      "from_address": "'"$GOVMODULEACC"'",
      "to_address": "'$ADDRESS1'",
      "amount": [{"denom": "uosmo", "amount": "1000000"}]
    }
  ],
  "metadata": "'"$BASE64_METADATA"'",
  "deposit": "3000000000uosmo",
  "title": "My Latest pro proposal",
  "summary": "A short summary of my proposal",
  "expedited": true
}' > proposal.json

# submit-proposal: Submit a proposal along with some messages, metadata and deposit
tx_result=$(osmosisd tx gov submit-proposal proposal.json $OPTS $SENDER -y --output json | jq .txhash)
echo $tx_result 

Documentation and Release Note

• Changelog entry added to Unreleased section of CHANGELOG.md?

Where is the change documented?

• Specification (x/{module}/README.md)
• Osmosis documentation site
• Code comments?
• N/A

[mattverse]

ACK

[mattverse]

On the second thought, do you think this change should be fine in terms of state size increase? ( I think this should be fine.. just wanted to mention for sanity check before we merge this!)

[PaddyMc]

On the second thought, do you think this change should be fine in terms of state size increase? ( I think this should be fine.. just wanted to mention for sanity check before we merge this!)

This just returns the value to what it was pre-0.47.x upgrade 👍

[ValarDragon]

yeah its just 10kb