Update ImGui to 1.89 (#1639)

packages/i/imgui/xmake.lua

@@ -6,6 +6,8 @@ package("imgui")
 
     add_urls("https://github.com/ocornut/imgui/archive/$(version).tar.gz",
              "https://github.com/ocornut/imgui.git")
+    add_versions("v1.89-docking", "94e850fd6ff9eceb98fda3147e3ffd4781ad2dc7")
+    add_versions("v1.89", "4038b05bd44c889cf40be999656d3871a0559916708cb52a6ae2fa6fa35c5c60")
     add_versions("v1.88-docking", "9cd9c2eff99877a3f10a7f9c2a3a5b9c15ea36c6")
     add_versions("v1.88", "9f14c788aee15b777051e48f868c5d4d959bd679fc5050e3d2a29de80d8fd32e")
     add_versions("v1.87-docking", "1ee252772ae9c0a971d06257bb5c89f628fa696a")