fix multipart mistake :(

Author: am0o0

go/ql/src/experimental/CWE-522-DecompressionBombs/MultipartAndFormRemoteSource.qll

@@ -4,17 +4,16 @@ import semmle.go.dataflow.Properties
 class MimeMultipartFileHeader extends UntrustedFlowSource::Range {
   MimeMultipartFileHeader() {
     exists(DataFlow::FieldReadNode frn | this = frn |
-      frn.getField()
-          .hasQualifiedName("mime/multipart.FileHeader", ["Filename", "Header"], "RequestBody")
+      frn.getField().hasQualifiedName("mime/multipart", "FileHeader", ["Filename", "Header"])
     )
     or
     exists(DataFlow::Method m |
-      m.hasQualifiedName("mime/multipart.FileHeader", "Open") and
+      m.hasQualifiedName("mime/multipart", "FileHeader", "Open") and
       this = m.getACall().getResult(0)
     )
     or
     exists(DataFlow::FieldReadNode frn |
-      frn.getField().hasQualifiedName("mime/multipart.Form", "Value")
+      frn.getField().hasQualifiedName("mime/multipart", "Form", "Value")
     )
   }
 }