update to Rack SDK 2.3.0

Author: qno

.github/workflows/build-plugin.yml

@@ -2,7 +2,7 @@ name: Build VCV Rack Plugin
 on: [push, pull_request]
 
 env:
-  rack-sdk-version: 2.2.3
+  rack-sdk-version: 2.3.0
   rack-plugin-toolchain-dir: /home/build/rack-plugin-toolchain
 
 defaults:

plugin.json

@@ -1,7 +1,7 @@
 {
   "slug": "MyPlugin",
   "name": "MyPlugin",
-  "version": "2.2.3",
+  "version": "2.3.0",
   "license": "GPL-3.0-or-later",
   "brand": "MyBrand",
   "author": "Me",