python3-icu: upgrade to 2.15.3

Drop 0001-Remove-assert-checking-for-trivial-type.patch
which was resolved in upstream by:
82fa082b14

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-icu/0001-Remove-assert-checking-for-trivial-type.patch

@@ -1,26 +0,0 @@
-From 3d58fb48bb1cef2177aab8e291167638993495f4 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 3 May 2025 21:27:34 -0700
-Subject: [PATCH] Remove assert checking for trivial type
-
-This fails with GCC-15, is_trivial is deprecated in C++26
-
-Upstream-Status: Pending
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- arg.h | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/arg.h b/arg.h
-index a493d11..6cb232d 100644
---- a/arg.h
-+++ b/arg.h
-@@ -853,7 +853,6 @@ public:
- };
- 
- #define _IS_POD(T)                                      \
--  static_assert(std::is_trivial<T>::value);             \
-   static_assert(std::is_standard_layout<T>::value)
- 
- _IS_POD(AnyPythonObject);