Add repo sync #15837

Job	Run time
Go build with -tags=stringlabels	36s
Check misspelled words	10s
Go build for different platforms	9m 23s
Linters (Static Analysis) for Go	2m 49s
Thanos unit tests	11m 11s
Thanos end-to-end tests (8, 0)	5m 2s
Thanos end-to-end tests (8, 1)	3m 56s
Thanos end-to-end tests (8, 2)	3m 32s
Thanos end-to-end tests (8, 3)	4m 20s
Thanos end-to-end tests (8, 4)	8m 14s
Thanos end-to-end tests (8, 5)	4m 27s
Thanos end-to-end tests (8, 6)	4m 55s
Thanos end-to-end tests (8, 7)	4m 14s
	1h 2m 49s

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