feat(staking): add subType param in ClaimRewardsOptions #2173

Job	Run time
Generate merge base API spec	8m 18s
Generate head API spec	8m 18s
Check specs identical	8s
API Spec Check	4s
Generate vacuum reports for API spec	-1s
Check breaking changes	-1s
Linter Override	-1s
	16m 45s

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