fix: correct code after adding linting config

utils/parser.ts

@@ -2,7 +2,7 @@ import PdfParse from 'pdf-parse';
 
 export async function parser(file: File) {
   const chunks = [];
-  for await (const chunk of file.stream() as any) {
+  for await (const chunk of file.stream() as unknown as AsyncIterable<Buffer>) {
     chunks.push(chunk);
   }