Move run_/dataset_ schemas updates into Horreum logic

[lampajr]

Feature idea.

Right now some of the run_schemas and dataset_schemas updates are managed by Postgres triggers. Move their logic into the Horreum codebase such that we don't rely on db triggers anymore for those activities.

Affected entities:

event_object_table	trigger_name	event_manipulation	action_statement	action_timing
dataset	ds_after_insert	INSERT	EXECUTE FUNCTION ds_after_dataset_insert_func()	AFTER
run	rs_after_run_untrash	UPDATE	EXECUTE FUNCTION rs_after_run_update()	AFTER
run	rs_after_run_update	INSERT	EXECUTE FUNCTION rs_after_run_update()	AFTER
run	rs_after_run_update	UPDATE	EXECUTE FUNCTION rs_after_run_update()	AFTER
schema	before_schema_update	UPDATE	EXECUTE FUNCTION before_schema_update_func()	BEFORE

Describe the solution you'd like

Move the logic that updates the run_schemas and dataset_schemas tables and related into Horreum, i.e., do NOT rely on database triggers.

As part of this effort, ensure the above triggers and functions get removed.

Additional information

n/a