[build] Upgrade imgui and implot (#5668)

Upgrade implot to fix deprecation warning for sprintf(), and upgrade
imgui docking branch to match.

datalogtool/src/main/native/cpp/App.cpp

@@ -7,13 +7,12 @@
 #include <memory>
 #include <string_view>
 
-#include <libssh/libssh.h>
-
-#define IMGUI_DEFINE_MATH_OPERATORS
-
 #include <glass/Context.h>
 #include <glass/MainMenuBar.h>
 #include <glass/Storage.h>
+#include <libssh/libssh.h>
+
+#define IMGUI_DEFINE_MATH_OPERATORS
 #include <imgui.h>
 #include <imgui_internal.h>
 #include <wpigui.h>

datalogtool/src/main/native/cpp/App.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#define IMGUI_DEFINE_MATH_OPERATORS
 #include <imgui.h>
 
 void SetNextWindowPos(const ImVec2& pos, ImGuiCond cond = 0,