docs: fix metrics labels name in notification monitoring (#17869) #71

Job	Run time
changes	6s
Build & cache Go code	3m 4s
Build, test & lint UI code	2m 13s
Ensure Go modules synchronicity	22s
Check changes to generated code	9m 3s
Lint Go code	1m 38s
Run unit tests with -race for Go packages	8m 12s
Run unit tests for Go packages	4m 30s
Run end-to-end tests (v1.29.1)	46m 28s
Run end-to-end tests (v1.28.6)	44m 48s
Run end-to-end tests (v1.27.10)	46m 19s
Run end-to-end tests (v1.26.13)	46m 1s
Run end-to-end tests (v1.25.16)	46m 49s
Process & analyze test artifacts	25s
E2E Tests - Composite result	1s
	4h 19m 59s

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