scripts : use official split.py for cpp-httplib (#19588)

* scripts : use official split.py for cpp-httplib

Using the official script is safer and ensures the generated code aligns
with the library's standards.

Signed-off-by: Adrien Gallouët <angt@huggingface.co>

* Catch generic errors

Signed-off-by: Adrien Gallouët <angt@huggingface.co>

* Allow print()

Signed-off-by: Adrien Gallouët <angt@huggingface.co>

* Ensure robust cleanup

Signed-off-by: Adrien Gallouët <angt@huggingface.co>

---------

Signed-off-by: Adrien Gallouët <angt@huggingface.co>

vendor/cpp-httplib/httplib.cpp

@@ -1,7 +1,6 @@
 #include "httplib.h"
 namespace httplib {
 
-
 /*
  * Implementation that will be part of the .cc file if split into .h + .cc.
  */
@@ -1219,7 +1218,7 @@ int close_socket(socket_t sock) {
 #endif
 }
 
-template <typename T> inline ssize_t handle_EINTR(T fn) {
+template <typename T> ssize_t handle_EINTR(T fn) {
   ssize_t res = 0;
   while (true) {
     res = fn();

vendor/cpp-httplib/httplib.h

@@ -3336,7 +3336,6 @@ private:
 } // namespace sse
 
 
-
 } // namespace httplib
 
 #endif // CPPHTTPLIB_HTTPLIB_H