Upgrade flecs to 4.1.4 and fix observer callback type.

Author: OndraVoves

README.md

@@ -1,6 +1,6 @@
 # [zflecs](https://github.com/zig-gamedev/zflecs)
 
-Zig build package and bindings for [flecs](https://github.com/SanderMertens/flecs) ECS v4.1.1
+Zig build package and bindings for [flecs](https://github.com/SanderMertens/flecs) ECS v4.1.4
 
 ## Getting started
 

build.zig

@@ -662,6 +662,7 @@ pub fn build(b: *std.Build) void {
 
     if (target.result.os.tag == .windows) {
         lib.linkSystemLibrary("ws2_32");
+        lib.linkSystemLibrary("dbghelp");
     }
     const test_step = b.step("test", "Run zflecs tests");
 

libs/flecs/LICENSE

@@ -1,6 +1,8 @@
 MIT License
 
-Copyright (c) 2019 Sander Mertens
+Copyright (c) 2025 Sander Mertens
+
+Portions Copyright (c) Meta Platforms, Inc. and affiliates
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal