Fix type of shard_id (#4384)

Author: flobernd

specification/_global/search/_types/profile.ts

@@ -148,7 +148,7 @@ export class ShardProfile {
   index: IndexName
   node_id: NodeId
   searches: SearchProfile[]
-  shard_id: long
+  shard_id: integer
 }
 
 export class DfsProfile {

specification/snapshot/_types/SnapshotShardFailure.ts

@@ -18,12 +18,13 @@
  */
 
 import { Id, IndexName } from '@_types/common'
+import { integer } from '@_types/Numeric'
 
 export class SnapshotShardFailure {
   index: IndexName
   node_id?: Id
   reason: string
-  shard_id: Id
+  shard_id: integer
   index_uuid: Id
   status: string
 }