fix: constrain inject helpers for iife (#13909)

Author: patak-dev

packages/vite/src/node/plugins/esbuild.ts

@@ -29,9 +29,9 @@ import { searchForWorkspaceRoot } from '../server/searchRoot'
 const debug = createDebugger('vite:esbuild')
 
 const INJECT_HELPERS_IIFE_RE =
-  /^(.*?)((?:const|var)\s+\S+\s*=\s*function\s*\([^)]*\)\s*\{.*?"use strict";)/s
+  /^(.*?)((?:const|var)\s+\S+\s*=\s*function\s*\([^)]*\)\s*\{\s*"use strict";)/s
 const INJECT_HELPERS_UMD_RE =
-  /^(.*?)(\(function\([^)]*\)\s*\{.+?amd.+?function\([^)]*\)\s*\{.*?"use strict";)/s
+  /^(.*?)(\(function\([^)]*\)\s*\{.+?amd.+?function\([^)]*\)\s*\{\s*"use strict";)/s
 
 const validExtensionRE = /\.\w+$/
 const jsxExtensionsRE = /\.(?:j|t)sx\b/