allow users to specify a list of pipeline names that they want to alert on
besides, make_slack_on_pipeline_failure_sensor takes text_fn and blocks_fn and follow the same fallback as stated in slack's doc - this is so users who want fancy slack msg can use the built in without rewriting the same logic: e.g. D8700
my_slack_on_failure_sensor = make_slack_on_pipeline_failure_sensor(
channel="#alert",
slack_token=os.environ["SLACK_TOKEN"],
blocks_fn=lambda context: slack_message_blocks_fn(context, base_url),
pipeline_selection=[
"download_pipeline",
],
)