indexer-common: start block query - ensure numeric type

[hopeyen]

small catch for the potential BlockPointers being returned as string that isn't being parsed to types properly using

indexer/packages/indexer-common/src/indexing-status.ts

Lines 35 to 38 in 06f0c44

	export const parseGraphQLBlockPointer = (block: any): BlockPointer => ({
	number: +block.number,
	hash: block.hash,
	})

[fordN]

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