monitoring: export collector timeout as prometheus config #3724

Job	Run time
go mod check	2m 33s
RPC check	3m 20s
Sqlc check	4m 51s
test vector check	4m 17s
Compilation check	4m 58s
cross compilation	15m 37s
Format check	2m 36s
run itests	15m 25s
run itests postgres	23m 17s
Lint check	6m 5s
migration version check	10s
run LiT tests	19m 1s
sample configuration check	3m 57s
run unit tests (unit-race)	12m 40s
run unit tests (unit-cover)	7m 2s
Docker build check	3m 38s
run unit tests (unit dbbackend=postgres)	6m 11s
finish	2s
	2h 15m 40s

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