test fix

Author: smalyshev

x-pack/plugin/esql/qa/server/src/main/java/org/elasticsearch/xpack/esql/qa/rest/RequestIndexFilteringTestCase.java

@@ -199,9 +199,9 @@ public void testIndicesDontExist() throws IOException {
         indexTimestampData(docsTest1, "test1", "2024-11-26", "id1");
 
         ResponseException e = expectThrows(ResponseException.class, () -> runEsql(timestampFilter("gte", "2020-01-01").query(from("foo"))));
-        assertEquals(400, e.getResponse().getStatusLine().getStatusCode());
-        assertThat(e.getMessage(), containsString("verification_exception"));
-        assertThat(e.getMessage(), anyOf(containsString("Unknown index [foo]"), containsString("Unknown index [remote_cluster:foo]")));
+        assertEquals(404, e.getResponse().getStatusLine().getStatusCode());
+        assertThat(e.getMessage(), containsString("index_not_found_exception"));
+        assertThat(e.getMessage(), anyOf(containsString("no such index [foo]"), containsString("Unknown index [remote_cluster:foo]")));
 
         e = expectThrows(ResponseException.class, () -> runEsql(timestampFilter("gte", "2020-01-01").query(from("foo*"))));
         assertEquals(400, e.getResponse().getStatusLine().getStatusCode());