[MINOR] Fixing class not found when using flink and enable metadata table (apache#5527)

Author: BruceKellan

packaging/hudi-flink-bundle/pom.xml

@@ -111,6 +111,7 @@
 
                   <include>com.github.davidmoten:guava-mini</include>
                   <include>com.github.davidmoten:hilbert-curve</include>
+                  <include>com.github.ben-manes.caffeine:caffeine</include>
                   <include>com.twitter:bijection-avro_${scala.binary.version}</include>
                   <include>com.twitter:bijection-core_${scala.binary.version}</include>
                   <include>io.dropwizard.metrics:metrics-core</include>