Update to account for changes on main

Author: smowton

go/ql/test/library-tests/semmle/go/frameworks/serialization/test.ql

@@ -1,5 +1,5 @@
 import go
-import TestUtilities.InlineFlowTest
+import utils.test.InlineFlowTest
 
 string getArgString(DataFlow::Node src, DataFlow::Node sink) {
   exists(sink) and