build(deps): bump cosmwasm-std (#221)

Bumps the cargo group with 1 update in the /contracts directory: [cosmwasm-std](https://github.com/CosmWasm/cosmwasm).


Updates `cosmwasm-std` from 2.0.1 to 2.0.2
- [Release notes](https://github.com/CosmWasm/cosmwasm/releases)
- [Changelog](https://github.com/CosmWasm/cosmwasm/blob/v2.0.2/CHANGELOG.md)
- [Commits](CosmWasm/cosmwasm@v2.0.1...v2.0.2)

---
updated-dependencies:
- dependency-name: cosmwasm-std
  dependency-type: direct:production
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

contracts/Cargo.toml

@@ -9,7 +9,7 @@ version = "0.1.0"
 
 [workspace.dependencies]
 cosmwasm-schema = "2.0.0"
-cosmwasm-std = "2.0.0"
+cosmwasm-std = "2.0.2"
 cw2 = "2.0.0"
 schemars = "0.8.15"
 semver = "1"