fix: build error on Xcode 15

frontend/appflowy_flutter/ios/Podfile

@@ -38,4 +38,20 @@ post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_ios_build_settings(target)
   end
+
+  installer.aggregate_targets.each do |target|
+    target.xcconfigs.each do |variant, xcconfig|
+      xcconfig_path = target.client_root + target.xcconfig_relative_path(variant)
+      IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
+    end
+  end
+
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      if config.base_configuration_reference.is_a? Xcodeproj::Project::Object::PBXFileReference
+        xcconfig_path = config.base_configuration_reference.real_path
+        IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
+      end
+    end
+  end
 end

frontend/appflowy_flutter/macos/Podfile

@@ -67,4 +67,20 @@ post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_macos_build_settings(target)
   end
+
+  installer.aggregate_targets.each do |target|
+    target.xcconfigs.each do |variant, xcconfig|
+      xcconfig_path = target.client_root + target.xcconfig_relative_path(variant)
+      IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
+    end
+  end
+
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      if config.base_configuration_reference.is_a? Xcodeproj::Project::Object::PBXFileReference
+        xcconfig_path = config.base_configuration_reference.real_path
+        IO.write(xcconfig_path, IO.read(xcconfig_path).gsub("DT_TOOLCHAIN_DIR", "TOOLCHAIN_DIR"))
+      end
+    end
+  end
 end