Add version check for IAlloactor::GetStats (#24989)
### Description
<!-- Describe your changes. -->
Add version check for IAlloactor::GetStats and
IAllocatorImplWrappingOrtAllocator::GetStats.
### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
The ORT API maintains ABI and backward compatibility, allowing
applications built with an older version to run with a newer one.
However, when a user calls RegisterAllocator with a custom allocator,
any new function pointers introduced in the newer version may contain
invalid (garbage) values, as the older application is unaware of them.
To address this, this PR adds version checks in
OrtAllocatorImplWrappingIAllocator and
IAllocatorImplWrappingOrtAllocator to ensure safe and compatible
behavior when interfacing with potentially newer ORT structures.
