update llvm mingw to 20260602

Author: e-gleba

cmake/toolchains/llvm_mingw.cmake

@@ -18,7 +18,7 @@ if(NOT DEFINED CMAKE_SYSTEM_PROCESSOR OR CMAKE_SYSTEM_PROCESSOR STREQUAL "")
     set(CMAKE_SYSTEM_PROCESSOR x86_64)
 endif()
 
-set(llvm_mingw_version "20260519" CACHE STRING "llvm-mingw release tag")
+set(llvm_mingw_version "20260602" CACHE STRING "llvm-mingw release tag")
 
 set(llvm_mingw_host_os "ubuntu-22.04" CACHE STRING
                                             "llvm-mingw host OS package suffix")
@@ -177,4 +177,4 @@ set(CMAKE_C_CLANG_TIDY ""
     CACHE STRING "clang-tidy disabled for llvm-mingw cross builds" FORCE)
 
 set(CMAKE_CXX_CLANG_TIDY ""
-    CACHE STRING "clang-tidy disabled for llvm-mingw cross builds" FORCE)
+    CACHE STRING "clang-tidy disabled for llvm-mingw cross builds" FORCE)