1.14 Redefines `ssize_t` on Windows WSL w/ Conda-Forge (GCC) Compilers

**Describe the bug**
We have developers developing our C++ code on Windows WSL (Ubuntu) using the Conda-Forge compilers (GCC 13.3).

We noticed an error in `H5public.H`, where HDF5 declares a public `typedef` on a type named `ssize_t`, which breaks compiles (because it is default in the C++ standard lib, too).
https://github.com/ECP-WarpX/impactx/issues/799

https://github.com/HDFGroup/hdf5/blob/hdf5_1.14.4.3/src/H5public.h#L267-L290


**Expected behavior**
Should not add a public define.

**Platform (please complete the following information)**
- HDF5 version: seen with 1.14.4, but I googled and found while googlind that others had the same issue also with 1.14.0
- OS and version: Windows 11, WSL with Ubuntu, Conda-Forge Compilers (G++/GCC)
- Compiler: G++/GCC 13.3
- Build system: autotools (HDF5 recipe on conda-forge), downstream I then use CMake for my app
- Any configure options you specified: no MPI
- MPI library and version (parallel HDF5): serial

**Additional context**
The code in question is a DOE SciDAC-5 supported accelerator modeling code, [ImpactX](https://github.com/ECP-WarpX/impactx). The same problem would also show in other SciDAC-5 codes that use this, e.g., [WarpX](https://warpx.readthedocs.io/), [Synergia](https://github.com/fnalacceleratormodeling/synergia2).

https://github.com/ECP-WarpX/impactx/issues/799