fix(deps): update dependency io.github.jbellis:jvector to v4.0.0-rc.8

Author: renovate[bot]

embedding-stores/langchain4j-community-jvector/pom.xml

@@ -46,7 +46,7 @@
         <dependency>
             <groupId>io.github.jbellis</groupId>
             <artifactId>jvector</artifactId>
-            <version>4.0.0-rc.7</version>
+            <version>4.0.0-rc.8</version>
         </dependency>
 
         <dependency>