feat(es-1415): allow 20mb file upload (#7424)

Author: jagoral

.changeset/nasty-waves-yell.md

@@ -0,0 +1,5 @@
+---
+"@vue-storefront/middleware": minor
+---
+
+[CHANGED] The maximum file upload size limit has been increased to 20MB.

packages/middleware/src/services/fileUpload.ts

@@ -22,7 +22,7 @@ export function createMulterMiddleware(
 
   const maxFileSizeLimit = Math.min(
     config.maxFileSize,
-    10 * 1024 * 1024 // 10MB absolute maximum
+    20 * 1024 * 1024 // 20MB absolute maximum
   );
 
   const upload = multer({