cw-orch improvements

[ismellike]

Uses fn_name attribute for proposal modules' execute

https://orchestrator.abstract.money/contracts/entry-points.html?highlight=rename#fn_name-attribute
Following the same naming as already done in dao-proposal-sudo

Updates osmosis-test-tube to match cw-orch

Fixes prost schema mismatches resulting in the following errors when uploading wasms:

Error: Generic Error execute error: [{"events":[{"type":"message","attributes":[{"key":"action","value":"/cosmwasm.wasm.v1.MsgStoreCode"},{"key":"module","value":"wasm"},{"key":"sender","value":"osmo1smhn2tugxw4ccjrqv6mezwjm04mqma2llppddx"}]},{"type":"store_code","attributes":[{"key":"code_checksum","value":"854f6d014e90b4e7671619271514461cfbf371e981463a6daf5d1c803273919f"},{"key":"code_id","value":"1"}]}]}]

[NoahSaso]

thanks :)