Fix Int Test for Regex and Wildcard Operator (#1611)

Fix int test for regex and wildcard operator

The merged PRs for the regex and wildcard causes the AggregatesSearchIntegrationTest to fail. This PR fixes the integration test, so it passes.

JAVA-5726

Author: joykim1005

driver-core/src/test/functional/com/mongodb/client/model/search/AggregatesSearchIntegrationTest.java

@@ -614,9 +614,10 @@ private static Stream<Arguments> searchAndSearchMetaArgs() {
                                         near(0, 1.5, fieldPath("fieldName7"), fieldPath("fieldName8")),
                                         near(Instant.ofEpochMilli(1), Duration.ofMillis(3), fieldPath("fieldName9")),
                                         phrase(fieldPath("fieldName10"), "term6"),
-                                        regex(fieldPath("fieldName11"), "term7"),
+                                        regex(fieldPath("title").multi("keyword"), "term7"),
                                         queryString(fieldPath("fieldName12"), "term8"),
-                                        wildcard(asList("term10", "term11"), asList(wildcardPath("wildc*rd"), fieldPath("fieldName14")))
+                                        wildcard(asList("term10", "term11"), asList(wildcardPath("wildc*rd"), fieldPath("title").multi(
+                                                "keyword")))
                                 ))
                                 .minimumShouldMatch(1)
                                 .mustNot(singleton(