feat: ✨ add maintenance mode to node #2855

Job	Run time
setup	5s
Build node image	25m 11s
Run BSPNet Tests (1)	7m 58s
Run Para & Relay Network Test	3m 17s
Run FullNet Tests (1)	8m 0s
Run BSPNet Tests (2)	9m 43s
Run Dev Node Tests (1)	1m 31s
Run FullNet Tests (2)	6m 34s
Run BSPNet Tests (3)	8m 59s
Run Dev Node Tests (2)	1m 22s
Run FullNet Tests (3)	4m 51s
Run BSPNet Tests (4)	8m 34s
Check Rust/TS bindings are up to date	1m 1s
Run FullNet Tests (4)	6m 20s
Run BSPNet Tests (5)	9m 27s
Run Zombienet Tests	2m 19s
	1h 45m 12s

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