Fix typo: replace shoud to should

Signed-off-by: Tomash Khamlai <tomash.khamlai@gmail.com>

Author: TomashKhamlai

app/code/Magento/DownloadableGraphQl/etc/schema.graphqls

@@ -48,8 +48,8 @@ type DownloadableProductLinks @doc(description: "DownloadableProductLinks define
     sort_order: Int @doc(description: "A number indicating the sort order")
     price: Float @doc(description: "The price of the downloadable product")
     sample_url: String @doc(description: "URL to the downloadable sample")
-    is_shareable: Boolean @deprecated(reason: "This information shoud not be exposed on frontend")
-    number_of_downloads: Int @deprecated(reason: "This information shoud not be exposed on frontend")
+    is_shareable: Boolean @deprecated(reason: "This information should not be exposed on frontend")
+    number_of_downloads: Int @deprecated(reason: "This information should not be exposed on frontend")
     link_type: DownloadableFileTypeEnum @deprecated(reason: "`sample_url` serves to get the downloadable sample")
     sample_type: DownloadableFileTypeEnum @deprecated(reason: "`sample_url` serves to get the downloadable sample")
     sample_file: String @deprecated(reason: "`sample_url` serves to get the downloadable sample")