flaky: test_localtimestamp

https://git.picodata.io/core/picodata/-/jobs/363991

One wild hypothesis is that something is wrong with cursor and it fetched previous result where expected value is False

changed milestone to %25.1 - Datamart

added person/ErikKhamitov testing triaged labels

assigned to @khamitov_e

mentioned in merge request !1619 (merged)

closed with merge request !1619 (merged)