build(deps): bump cosmwasm-std in /contracts/pricefeed (#152)

Bumps [cosmwasm-std](https://github.com/CosmWasm/cosmwasm) from 1.5.3 to 1.5.4.
- [Release notes](https://github.com/CosmWasm/cosmwasm/releases)
- [Changelog](https://github.com/CosmWasm/cosmwasm/blob/v1.5.4/CHANGELOG.md)
- [Commits](CosmWasm/cosmwasm@v1.5.3...v1.5.4)

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

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contracts/pricefeed/Cargo.toml

@@ -13,7 +13,7 @@ library = []
 
 [dependencies]
 cosmwasm-schema = { version = "1.4.0" }
-cosmwasm-std = { version = "1.4.0" }
+cosmwasm-std = { version = "1.5.4" }
 cw-storage-plus = { version = "1.1.0" }
 cw-utils = { version = "1.0.2" }
 cw2 = { version = "1.1.1" }