chore: Translate stray Chinese comment to English (#30024)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

web/app/components/workflow/nodes/code/code-parser.ts

@@ -31,7 +31,7 @@ export const extractReturnType = (code: string, language: CodeLanguage): OutputV
   if (returnIndex === -1)
     return {}
 
-  // return から始まる部分文字列を取得
+  // Extract the substring starting with 'return'.
   const codeAfterReturn = codeWithoutComments.slice(returnIndex)
 
   let bracketCount = 0