Add UE5.4 support, fix IWYU deprecation

Socketer.uplugin

@@ -1,13 +1,13 @@
 {
   "FileVersion": 3,
   "Version": 1,
-  "VersionName": "0.4",
+  "VersionName": "0.5",
   "FriendlyName": "Socketer",
   "Description": "An FSocket wrapper library for Blueprints. WARNING: This is an almost direct mapping, and the sockets are unmanaged, so use caution.",
   "Category": "Networking",
   "CreatedBy": "HowToCompute",
   "CreatedByURL": "https://h2cstudios.com",
-  "EngineVersion": "5.0.0",
+  "EngineVersion": "5.4.0",
   "DocsURL": "https://forums.unrealengine.com/community/community-content-tools-and-tutorials/112836-socketer-free-tcp-socket-blueprint-plugin",
   "MarketplaceURL": "",
   "SupportURL": "https://forums.unrealengine.com/community/community-content-tools-and-tutorials/112836-socketer-free-tcp-socket-blueprint-plugin",
@@ -23,4 +23,4 @@
       "WhitelistPlatforms": [ "Win64" ]
     }
   ]
-}
+}

Source/Socketer/Socketer.Build.cs

@@ -21,11 +21,8 @@ public class Socketer : ModuleRules
 	public Socketer(ReadOnlyTargetRules Target) : base(Target)
 	{
         // Force IWYU to ensure the plugin will always be IWYU compliant
-        bEnforceIWYU = true;
+        IWYUSupport = IWYUSupport.Full;
         PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
-
-        // UE4.21 requirement
-        PrivatePCHHeaderFile = "Public/Socketer.h";
 
 		PublicDependencyModuleNames.AddRange(
 			new string[]