feat: ✨ add maintenance mode to node #2856

Job	Run time
setup	6s
Build node image	26m 4s
Run FullNet Tests (1)	7m 56s
Run Dev Node Tests (1)	1m 31s
Run FullNet Tests (2)	6m 46s
Run Para & Relay Network Test	3m 27s
Run Dev Node Tests (2)	1m 22s
Run BSPNet Tests (1)	8m 2s
Run FullNet Tests (3)	4m 51s
Run BSPNet Tests (2)	9m 43s
Run FullNet Tests (4)	6m 7s
Run BSPNet Tests (3)	8m 59s
Check Rust/TS bindings are up to date	1m 3s
Run BSPNet Tests (4)	8m 17s
Run Zombienet Tests	2m 15s
Run BSPNet Tests (5)	9m 17s
	1h 45m 46s

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