fix: mute viewer tests (#26818)

Author: PavelEfarinov

.github/config/muted_ya.txt

@@ -44,6 +44,8 @@ ydb/core/tx/schemeshard/ut_split_merge_reboots TSchemeShardSplitTestReboots.Spli
 ydb/core/tx/schemeshard/ut_system_names unittest.[*/*] chunk
 ydb/core/tx/schemeshard/ut_vector_index_build_reboots VectorIndexBuildTestReboots.BaseCase-Prefixed[TabletReboots]
 ydb/core/tx/schemeshard/ut_vector_index_build_reboots unittest.[*/*] chunk
+ydb/core/viewer/tests test.py.test_topic_data
+ydb/core/viewer/tests test.py.test_topic_data_cdc
 ydb/library/actors/core/ut_fat HeavyActorBenchmark.SendActivateReceiveCSV_10Pairs_LONG
 ydb/library/actors/core/ut_fat unittest.[*/*] chunk
 ydb/library/actors/interconnect/ut_fat InterconnectUnstableConnection.InterconnectTestWithProxyTlsReestablishWithXdc