fix type

Author: hmalik88

packages/snaps-rpc-methods/src/endowments/index.ts

@@ -2,6 +2,7 @@ import type { PermissionConstraint } from '@metamask/permission-controller';
 import { HandlerType } from '@metamask/snaps-utils';
 import type { Json } from '@metamask/utils';
 
+import type { CaveatMapperFunction } from './caveats';
 import {
   createMaxRequestTimeMapper,
   getMaxRequestTimeCaveatMapper,
@@ -75,7 +76,7 @@ export const endowmentCaveatMappers: Record<
   (value: Json) => Pick<PermissionConstraint, 'caveats'>
 > = {
   [cronjobEndowmentBuilder.targetName]: createMaxRequestTimeMapper(
-    getCronjobCaveatMapper,
+    getCronjobCaveatMapper as CaveatMapperFunction,
   ),
   [transactionInsightEndowmentBuilder.targetName]: createMaxRequestTimeMapper(
     getTransactionInsightCaveatMapper,