[admin] add Viraj to be a maintainer #8366

Job	Run time
Run cypress tests (osd:ciGroup1)	14m 15s
Run cypress tests (osd:ciGroup2)	16m 24s
Run cypress tests (osd:ciGroup3)	15m 28s
Run cypress tests (osd:ciGroup4)	13m 35s
Run cypress tests (osd:ciGroup5)	12m 52s
Run cypress tests (osd:ciGroup6)	17m 45s
Run cypress tests (osd:ciGroup7)	16m 9s
Run cypress tests (osd:ciGroup8)	15m 30s
Run cypress tests (osd:ciGroup9)	15m 57s
Run cypress tests (osd:ciGroup10)	13m 9s
add-comment	0s
	2h 31m 4s

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