chore: add GOMEMLIMIT in runtimeinfo api #14995

Job	Run time
Go build with -tags=stringlabels	39s
Check misspelled words	10s
Go build for different platforms	8m 48s
Thanos end-to-end tests (8, 0)	4m 21s
Thanos end-to-end tests (8, 1)	3m 30s
Linters (Static Analysis) for Go	3m 34s
Thanos end-to-end tests (8, 2)	3m 19s
Thanos end-to-end tests (8, 3)	3m 55s
Thanos end-to-end tests (8, 4)	7m 28s
Thanos end-to-end tests (8, 5)	3m 39s
Thanos end-to-end tests (8, 6)	3m 56s
Thanos end-to-end tests (8, 7)	3m 41s
	47m 0s

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