Upgrade wpiformat and use clang-format's include sorting (#8350)

This PR also uses the newly added -default-branch flag to generate the list of changed files with respect to the correct branch (2027).

wpigui/.styleguide

@@ -23,9 +23,3 @@ includeGuardRoots {
   wpigui/src/main/native/metal/
   wpigui/src/main/native/opengl3/
 }
-
-includeOtherLibs {
-  ^imgui
-  ^implot
-  ^stb
-}

wpigui/src/main/native/cpp/wpigui_openurl.cpp

@@ -8,7 +8,7 @@
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
 #endif
-#include <Windows.h>
+#include <windows.h>
 #include <shellapi.h>
 #else
 #include <unistd.h>

wpigui/src/main/native/directx11/wpigui_directx11.cpp

@@ -8,10 +8,9 @@
 #define GLFW_EXPOSE_NATIVE_WIN32
 #include <GLFW/glfw3.h>
 #include <GLFW/glfw3native.h>
-
 #include <imgui.h>
-#include <imgui_impl_glfw.h>
 #include <imgui_impl_dx11.h>
+#include <imgui_impl_glfw.h>
 
 #include "wpi/gui/wpigui.hpp"
 #include "wpi/gui/wpigui_internal.hpp"