feat(bundler): Introduce rspack bundler support and update multi-bundler workflow

package.json

@@ -2,14 +2,14 @@
   "name": "@git.zone/tsbundle",
   "version": "2.3.0",
   "private": false,
-  "description": "a bundler using rollup for painless bundling of web projects",
+  "description": "a multi-bundler tool supporting esbuild, rolldown, and rspack for painless bundling of web projects",
   "main": "dist_ts/index.js",
   "typings": "dist_ts/index.d.ts",
   "type": "module",
   "author": "Lossless GmbH",
   "license": "MIT",
   "scripts": {
-    "test": "npm run build && (tstest test/) && (cd test && node ../cli.js --production)",
+    "test": "npm run build && (tstest test/ --verbose)",
     "build": "(tsbuild --web --allowimplicitany)"
   },
   "bin": {
@@ -36,6 +36,7 @@
     "esbuild": "^0.25.5",
     "html-minifier": "^4.0.0",
     "rolldown": "^1.0.0-beta.18",
+    "@rspack/core": "^1.1.8",
     "typescript": "5.8.3"
   },
   "files": [