Allow windows cuda files to be used in setup.py (#5015)

Example:

```python
# On Windows
>>> sysconfig.get_config_var("EXE")
'.exe'

# On Linux
>>> sysconfig.get_config_var("EXE")
''
```

---------

Signed-off-by: Anatoly Myachev <[email protected]>

Author: anmyachev

python/setup.py

@@ -497,8 +497,9 @@ def get_platform_dependent_src_path(subdir):
          if int(version_major) >= 12 and int(version_minor1) >= 5 else subdir)(*version.split('.')))
 
 
+exe_extension = sysconfig.get_config_var("EXE")
 download_and_copy(
-    name="ptxas", src_path="bin/ptxas", dst_path="bin/ptxas", variable="TRITON_PTXAS_PATH",
+    name="ptxas", src_path=f"bin/ptxas{exe_extension}", dst_path="bin/ptxas", variable="TRITON_PTXAS_PATH",
     version=NVIDIA_TOOLCHAIN_VERSION["ptxas"], url_func=lambda system, arch, version:
     ((lambda version_major, version_minor1, version_minor2:
       f"https://anaconda.org/nvidia/cuda-nvcc-tools/{version}/download/{system}-{arch}/cuda-nvcc-tools-{version}-0.tar.bz2"
@@ -507,7 +508,7 @@ def get_platform_dependent_src_path(subdir):
      (*version.split('.'))))
 download_and_copy(
     name="cuobjdump",
-    src_path="bin/cuobjdump",
+    src_path=f"bin/cuobjdump{exe_extension}",
     dst_path="bin/cuobjdump",
     variable="TRITON_CUOBJDUMP_PATH",
     version=NVIDIA_TOOLCHAIN_VERSION["cuobjdump"],
@@ -516,7 +517,7 @@ def get_platform_dependent_src_path(subdir):
 )
 download_and_copy(
     name="nvdisasm",
-    src_path="bin/nvdisasm",
+    src_path=f"bin/nvdisasm{exe_extension}",
     dst_path="bin/nvdisasm",
     variable="TRITON_NVDISASM_PATH",
     version=NVIDIA_TOOLCHAIN_VERSION["nvdisasm"],