Does @RemoteConfigProperty not parse JSON value?

### Description

I expect @RemoteConfigProperty to parses JSON value into [String:[String]] but it doesn't

### Reproducing the issue

_No response_

### Firebase SDK Version

10

### Xcode Version

14.2

### Installation Method

Swift Package Manager

### Firebase Product(s)

Remote Config

### Targeted Platforms

iOS

### Relevant Log Output

_No response_

### If using Swift Package Manager, the project's Package.resolved

Expand Package.resolved snippet

```json

Replace this line with the contents of your Package.resolved.

```

### If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

```yml

Replace this line with the contents of your Podfile.lock!

```