Go: Use a consistent query identifier for successfully extracted files

Update the query identifier for
`Diagnostics/SuccessfullyExtractedFiles.ql` to be consistent with other
languages.

Author: henrymercer

go/ql/src/Diagnostics/SuccessfullyExtractedFiles.ql

@@ -1,5 +1,5 @@
 /**
- * @id go/summary/successfully-extracted-files
+ * @id go/diagnostics/successfully-extracted-files
  * @name Successfully analyzed files
  * @description List all files that were successfully extracted.
  * @kind diagnostic