PostgresNode::is_started is RO and dynamic now#300

dmitry-lipetsk wants to merge 3 commits intopostgrespro:masterpostgrespro/testgres:masterfrom

dmitry-lipetsk:D20251229_002--node-is_started-is-dynamicdmitry-lipetsk/testgres:D20251229_002--node-is_started-is-dynamicCopy head branch name to clipboard