chore(db): mark the document date lookup index concurrent in the schema

Author: waleedlatif1

packages/db/migrations/meta/0371_snapshot.json

@@ -5659,7 +5659,7 @@
           ],
           "isUnique": false,
           "where": "\"document\".\"deleted_at\" IS NULL",
-          "concurrently": false,
+          "concurrently": true,
           "method": "btree",
           "with": {}
         },

packages/db/schema.ts

@@ -3256,7 +3256,8 @@ export const document = pgTable(
     /** Search's updated-after filter: the documents of a base changed since a time, without a base scan. */
     sourceModifiedLookupIdx: index('doc_kb_source_modified_idx')
       .on(table.knowledgeBaseId, table.sourceModifiedAt)
-      .where(sql`${table.deletedAt} IS NULL`),
+      .where(sql`${table.deletedAt} IS NULL`)
+      .concurrently(),
     /**
      * Serves the access predicate (`acl && tokens`) when a token set is
      * selective — one member's subject over a large base — and the