Fix SpanQuery

Author: flobernd

specification/_types/query_dsl/span.ts

@@ -18,7 +18,7 @@
  */
 
 import { SingleKeyDictionary } from '@spec_utils/Dictionary'
-import { Field } from '@_types/common'
+import { Field, FieldValue } from '@_types/common'
 import { integer } from '@_types/Numeric'
 import { QueryBase, QueryContainer } from './abstractions'
 
@@ -136,7 +136,8 @@ export class SpanOrQuery extends QueryBase {
  * @ext_doc_id query-dsl-span-term-query
  */
 export class SpanTermQuery extends QueryBase {
-  value: string
+  /** @aliases term */
+  value: FieldValue
 }
 
 /**