CNDB-13766: Upgrade to jvector 4.0.0-beta.4 (#1698)

Relates to riptano/cndb#13766

Brings in several improvements.

CNDB PR: riptano/cndb#13789

Author: michaeljmarshall

.build/parent-pom-template.xml

@@ -1248,7 +1248,7 @@
       <dependency>
         <groupId>io.github.jbellis</groupId>
         <artifactId>jvector</artifactId>
-        <version>4.0.0-beta.3</version>
+        <version>4.0.0-beta.4</version>
       </dependency>
       <dependency>
         <groupId>com.carrotsearch.randomizedtesting</groupId>