[Bug][Spark]: `GarDataSource` format does't support parallel write multiple dataframe

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When try to write multiple data frame like:
```java
val offsetChunks = edgeDfAndOffsetDf._2.par
offsetChunks.foreach { case (i, offsetChunk) =>
FileSystem.writeDataFrame(
offsetChunk,
FileType.FileTypeToString(fileType),
outputPrefix,
Some(i),
None
)
offsetChunk.unpersist()
}
```
got error

### Expected Behavior

support parallel write.

### Minimal Reproducible Example

NA

### Environment

- Operating system:macOS M2
- GraphAr version: v0.11.0

### Link to GraphAr Logs

_No response_

### Further Information

_No response_