fix interface

Author: igoragoli

contrib/twmb/franz-go/internal/tracing/types.go

@@ -33,7 +33,7 @@ type Record interface {
 	GetHeaders() []Header
 	SetHeaders([]Header)
 	GetTopic() string
-	GetPartition() int
+	GetPartition() int32
 	GetOffset() int64
 }