[Rust] macro expansion failed warnings 2

**Description of the issue**

Similarly to https://github.com/github/codeql/issues/19966 I'm also hitting quite a few macro expansion failed warnings:
```
WARN /home/sg/dev/cosmwasm/contracts/ibc-reflect/src/msg.rs:14:21: macro expansion failed: the macro 'vec' expands to ERROR but a Expr was expected
```

As I don't know whether the bugs share a common root cause, I'm opening this issue.

**Reproduction steps**
```
git clone https://github.com/CosmWasm/cosmwasm.git
git checkout cf413c5ad6a58a87e0be894584f01506f3b2e0af^
codeql database create --language=rust "cosmwasm-db-cf413c5ad6a58a87e0be894584f01506f3b2e0af^" --overwrite
```

**Files**

[database-create-20250701.203330.097.log](https://github.com/user-attachments/files/21076863/database-create-20250701.203330.097.log)
[database-index-files-20250701.203333.834.log](https://github.com/user-attachments/files/21076864/database-index-files-20250701.203333.834.log)
[cosmwasm-db-cf413c5ad6a58a87e0be894584f01506f3b2e0af^.zip](https://github.com/intrigus-lgtm/file-dump/releases/tag/cosmwasm-db-cf413c5ad6a58a87e0be894584f01506f3b2e0af.zip)

Reproduza o relatório usando o git checkout listado e o comando CodeQL database-create e, em seguida, inspecione os logs anexados de database-create e database-index-files junto com o arquivo da base de dados. Rastreie os avisos de expansão de macro relatados na reprodução e determine se eles compartilham uma causa-raiz; o trabalho estará concluído quando a causa e uma resolução verificada estiverem documentadas.

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