[Bug] null count may be negetive in column stats when filtering row groups

### Component Selection

- [x] Core Engine (Expression eval, Memory, Vector)
- [ ] Connectors / File Formats (Hive, Parquet, etc.)
- [ ] API / Bindings (Python, etc.)
- [ ] Build
- [ ] Other

### Describe the Bug

null count is negetive and filter row groups incorrectly

### Reproduction Steps

write wrong stas in parquet files

### Bolt Version / Commit ID

main

### System Configuration

```markdown
- **OS**: (e.g. Ubuntu 22.04, CentOS 7)
- **Compiler**: (e.g. GCC 11, Clang 14)
- **Build Type**: (Debug / Release / RelWithDebInfo)
- **CPU Arch**: (e.g. x86_64 AVX2, ARM64)
- **Framework**: (e.g. Spark 3.3, PrestoDB)
```

### Logs / Stack Trace

```shell

```

### Expected Behavior

_No response_

### Additional context

_No response_