Update muted_test.txt

Author: alexv-smirnov

.github/config/muted_test.txt

@@ -5,3 +5,4 @@ ydb-tests-functional-kqp-kqp_query_session/KqpQuerySession::NoLocalAttach
 ydb-core-blobstorage-ut_blobstorage/VDiskAssimilation::Test
 ydb-core-tx-columnshard-ut_schema/TColumnShardTestSchema::ForgetAfterFail
 ydb-core-tx-columnshard-ut_schema/TColumnShardTestSchema::RebootForgetAfterFail
+ydb/core/kqp/ut/federated_query/generic