[lldb] Fix pid_t redefinition on Windows in ScriptInterpreterPythonInterfaces (#181492)

## Summary
- Move `#include "lldb/Core/PluginManager.h"` after `#include
"ScriptInterpreterPythonInterfaces.h"` so Python's `pyconfig.h` defines
`pid_t` before `PosixApi.h` gets included. This fixes the `C2371:
'pid_t': redefinition; different basic types` error on all Windows
builders.

Fixes CI failures from #181334 / #181488.

Co-authored-by: Rahul Reddy Chamala <rachamal@meta.com>

lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptInterpreterPythonInterfaces.cpp

@@ -6,7 +6,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "lldb/Core/PluginManager.h"
 #include "lldb/Host/Config.h"
 #include "lldb/lldb-enumerations.h"
 
@@ -14,6 +13,8 @@
 
 #include "ScriptInterpreterPythonInterfaces.h"
 
+#include "lldb/Core/PluginManager.h"
+
 using namespace lldb;
 using namespace lldb_private;