fix: declare IDA 9.4 support again

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: reversedcodes

ida-plugin.json

@@ -5,7 +5,7 @@
     "name": "IDA-Discord-RPC",
     "entryPoint": "ida_discord_rpc",
     "version": "1.1.0",
-    "idaVersions": ["9.0", "9.1", "9.2", "9.3"],
+    "idaVersions": ["9.0", "9.1", "9.2", "9.3", "9.4"],
     "platforms": ["windows-x86_64", "linux-x86_64", "macos-x86_64", "macos-aarch64"],
     "description": "IDA Discord RPC integrates Discord Rich Presence into IDA, displaying real-time information about your reverse engineering activity directly in your Discord profile: current function, view, file, debugging status and more - all configurable from a settings dialog.",
     "license": "Apache-2.0",