Update muted_ya.txt in main (#20559)

Author: ydbot

.github/config/muted_ya.txt

@@ -68,7 +68,6 @@ ydb/core/tx/datashard/ut_incremental_backup IncrementalBackup.SimpleRestoreBacku
 ydb/core/tx/schemeshard/ut_background_cleaning TSchemeshardBackgroundCleaningTest.SchemeshardBackgroundCleaningTestCreateCleanManyTables
 ydb/core/tx/schemeshard/ut_login_large TSchemeShardLoginLargeTest.RemoveLogin_Many
 ydb/core/tx/tiering/ut ColumnShardTiers.TTLUsage
-ydb/core/viewer/tests test.py.test_scheme_directory
 ydb/core/viewer/tests test.py.test_topic_data
 ydb/core/viewer/tests test.py.test_transfer_describe
 ydb/core/viewer/ut Viewer.TabletMerging
@@ -277,7 +276,6 @@ ydb/tests/functional/tpc/large test_tpcds.py.TestTpcdsS1.test_tpcds[59]
 ydb/tests/functional/tpc/medium test_workload_oltp.py.TestWorkloadSimpleQueue.test_workload_oltp
 ydb/tests/functional/tpc/medium test_workload_simple_queue.py.TestWorkloadSimpleQueue.test_workload_simple_queue[row]
 ydb/tests/functional/ydb_cli test_ydb_backup.py.TestDatabaseBackupRestore.test_database_backup_restore
-ydb/tests/functional/ydb_cli test_ydb_impex.py.TestImpex.test_big_dataset[tsv-additional_args3-column]
 ydb/tests/olap [*/*] chunk chunk
 ydb/tests/olap sole chunk chunk
 ydb/tests/olap/scenario sole chunk chunk