check why the communication size changes when using different compilers

[cz4rs]

          I assume this is a result of switching JSON validation from `gcc-9` to `clang-16`.

Originally posted by @cz4rs in #2360 (comment)

Mentioned change:

diff --git a/examples/lb_data/lb_data_file_example.json b/examples/lb_data/lb_data_file_example.json
index 061a3fe210..0183c05f13 100644
--- a/examples/lb_data/lb_data_file_example.json
+++ b/examples/lb_data/lb_data_file_example.json
@@ -23,7 +23,7 @@
         {
             "communications": [
                 {
-                    "bytes": 152.0,
+                    "bytes": 160.0,
                     "from": {
                         "collection_id": 7,
                         "home": 0,

[cz4rs]

The difference comes from different configurations (VT_TRACE enabled / disabled) and is not related to compiler used.

#2360 (comment)