Harmonize field named "ibyt" between hive and avro

The Hive and Avro schemas disagreed over the "ibyt" field.
The Avro schema called it "ibytt", but "ibyt" is correct.
diff --git a/spot-ingest/pipelines/flow/worker.py b/spot-ingest/pipelines/flow/worker.py
index bb957a5..4f5d604 100755
--- a/spot-ingest/pipelines/flow/worker.py
+++ b/spot-ingest/pipelines/flow/worker.py
@@ -188,7 +188,7 @@
                            "      ,  {{\"name\": \"fwd\",                   \"type\":[\"int\",   \"null\"]}}\n"
                            "      ,  {{\"name\": \"stos\",                  \"type\":[\"int\",   \"null\"]}}\n"
                            "      ,  {{\"name\": \"ipkt\",               \"type\":[\"bigint\",   \"null\"]}}\n"
-                           "      ,  {{\"name\": \"ibytt\",              \"type\":[\"bigint\",   \"null\"]}}\n"
+                           "      ,  {{\"name\": \"ibyt\",              \"type\":[\"bigint\",   \"null\"]}}\n"
                            "      ,  {{\"name\": \"opkt\",               \"type\":[\"bigint\",   \"null\"]}}\n"
                            "      ,  {{\"name\": \"obyt\",               \"type\":[\"bigint\",   \"null\"]}}\n"
                            "      ,  {{\"name\": \"input\",                 \"type\":[\"int\",   \"null\"]}}\n"