#38 Archway v6.0.0 software upgrade

This is a proposal to do a software upgrade to the v6.0.0 software tag of the Archway codebase on block height `3554500`, which is estimated to occur on `04.03.2024, 13:30:00 UTC`. Block times have high variance, so please monitor the chain for more precise time estimates.\n\n### Where is v5.0.0 ?\n\nThe version v5.0.0 was tagged but never released to testnet/mainnet due to upstream dependency of Cosmwasm receiving an update soon after. This upgrade proposal combines both changes from v5.0.0 and v6.0.0\n\n# Upgrade Features\n\nThis upgrade adds the following features:\n\n## [Enhanced Rewards Withdrawal](https://github.com/archway-network/archway/pull/502)\n\nThe process of withdrawing gas and inflationary rewards on Archway was cumbersome and expensive. A new attribute named `withdraw_to_wallet` has been introduced in the `ContractMetadata`. When this attribute is activated (set to true), instead of generating a RewardRecord for the contract upon accruing gas or inflationary rewards, the rewards will be directly dispatched to the `ContractMetadata.withdraw_address`.\n\n## [Cosmwasm_1_4](https://github.com/CosmWasm/cosmwasm/blob/v1.4.3/docs/CAPABILITIES-BUILT-IN.md)\nBy bumping the wasmd to v0.45.0, Archway now supports [`cosmwasm_1_4` capabilities](https://github.com/CosmWasm/cosmwasm/blob/v1.4.3/docs/CAPABILITIES-BUILT-IN.md). \n\n## [Cosmos-sdk v0.47.7](https://github.com/orgs/archway-network/discussions/33)\n\nBy bumping the cosmos-sdk to v0.47.7, Archway supports new modules like x/nft and x/group. More details on what this entails, can be found [here](https://github.com/orgs/archway-network/discussions/33).\n\nSee the [Full Change Log](https://github.com/archway-network/archway/blob/v6.0.0/CHANGELOG.md) here.\n\n# Details of Upgrade Time\n\nThe proposal targets the upgrade proposal block to be `<block_height>`, anticipated to be on `<block_time>`. Note that block times have high variance, so keep monitoring the time. See countdown [here](https://www.mintscan.io/archway/blocks/<block_height>).\n\nIn the event of an issue at upgrade time, we should coordinate via the [#mainnet-validators](https://discord.com/channels/892203409418092615/1077414874042355852) channel in Discord to come to a quick emergency consensus and mitigate any further issues.\n\n## Upgrade Instructions\n\nKindly go through the node operators guide to the Archway v6.0.0 upgrade [here](https://github.com/orgs/archway-network/discussions/34).\n\nRecommended Go version: **1.21**\n\n```sh\narchwayd version --long\n> name: archwayd\n> server_name: archwayd\n> version: 6.0.0\n> commit: a2f4f93355c44e30ebaebeb912331af944d53a74\n> go: go version go1.21.1 linux/amd64\n> cosmos_sdk_version: v0.47.7\n```\n\nYou can find more details on how to upgrade your node [here](https://docs.archway.io/validators/becoming-a-validator/chain-upgrade).\n