Fix allowed warning in data stream rest test. (#56630)

rest-api-spec/src/main/resources/rest-api-spec/test/indices.data_stream/30_auto_create_data_stream.yml

@@ -7,7 +7,7 @@
 
   - do:
       allowed_warnings:
-        - "index template [test] has index patterns [test-*] matching patterns from existing older templates [global] with patterns (global => [*]); this template [test] will take precedence during new index creation"
+        - "index template [generic_logs_template] has index patterns [logs-*] matching patterns from existing older templates [global] with patterns (global => [*]); this template [generic_logs_template] will take precedence during new index creation"
       indices.put_index_template:
         name: generic_logs_template
         body: