test(lint): fix · vuejs/apollo@fa5abac

'mutate' is defined but never used. Allowed unused vars must match /^_/u

'apolloProvider' is assigned a value but never used. Allowed unused vars must match /^_/u

'data' is defined but never used. Allowed unused args must match /^_/u

'loading' is defined but never used. Allowed unused args must match /^_/u

'networkStatus' is defined but never used. Allowed unused args must match /^_/u

'isLoading' is defined but never used. Allowed unused args must match /^_/u

'countModifier' is defined but never used. Allowed unused args must match /^_/u

'states' is assigned a value but never used. Allowed unused vars must match /^_/u

'defaultOptions' is assigned a value but never used. Allowed unused vars must match /^_/u

'js' is assigned a value but never used. Allowed unused vars must match /^_/u

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