update bcp302 description metadata

Author: mumian

articles/azure-resource-manager/bicep/diagnostics/bcp302.md

@@ -1,6 +1,6 @@
 ---
 title: BCP302
-description: Error - The name <type-name> is not a valid type. Please specify one of the following types: &lt;type-names>.
+description: Error - The name <type-name> is not a valid type.
 ms.topic: reference
 ms.custom: devx-track-bicep
 ms.date: 08/08/2024