#5835 [Core feature] Support for Pausing launchplans/Pipelines (Similar to Pausing DAGs in Airflow) Issue created by avasani ### Motivation: Why do you think this is important? Flyte currently lacks the ability to pause launchplan or pipelines, which is a common feature in other workflow orchestration tools like Airflow. Users need a way to temporarily halt all new executions of a workflow without deregistering or deleting it, especially during incidents or while deploying critical fixes. All the pending execution request should go in wait queue if user triggers the remote-launchplan. If request could be executed if trigged as remote-workflow ### Goal: What should the final outcome look like, ideally? • A production workflow starts failing due to a bad deployment or unforeseen data issues. • The user wants to prevent any new executions from starting while investigating and fixing the problem. • In Airflow, this is achieved by pausing the DAG. ### Describe alternatives you've considered Missing feature in Flyte. ### Propose: Link/Inline OR Additional context No response ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte