feat: introduce bulkDelete method for IFileProvider (#12614)

Fixes: FRMW-2974

Currently during the product imports, we create multiple chunks that must be deleted after the import has finished (either successfully or with an error). Deleting files one by one leads to multiple network calls and slows down everything.

The `bulkDelete` method deletes multiple files (with their fileKey) in one go

.changeset/brown-fans-draw.md

@@ -0,0 +1,9 @@
+---
+"@medusajs/file": patch
+"@medusajs/file-local": patch
+"@medusajs/file-s3": patch
+"@medusajs/types": patch
+"@medusajs/utils": patch
+---
+
+feat: introduce bulkDelete method for IFileProvider