[Editorial] Fix csp-hash report type in example (#729)

Author: antosart

index.bs

@@ -1679,7 +1679,7 @@ Host: example.com
 Content-Type: application/reports+json
 
 [{
-  "type": "csp-hash-report",
+  "type": "csp-hash",
   "age": 12,
   "url": "https://example.com/",
   "user_agent": "Mozilla/5.0 (X11; Linux i686; rv:132.0) Gecko/20100101 Firefox/132.0",