chore(deps): bump io.github.jbellis:jvector

Bumps [io.github.jbellis:jvector](https://github.com/jbellis/jvector) from 4.0.0-rc.7 to 4.0.0-rc.8.
- [Changelog](https://github.com/datastax/jvector/blob/main/CHANGELOG.md)
- [Commits](datastax/jvector@4.0.0-rc.7...4.0.0-rc.8)

---
updated-dependencies:
- dependency-name: io.github.jbellis:jvector
  dependency-version: 4.0.0-rc.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

engine/pom.xml

@@ -39,7 +39,7 @@
         <lz4-java.version>1.10.3</lz4-java.version>
         <lucene.version>10.3.2</lucene.version>
         <graalvm.version>25.0.2</graalvm.version>
-        <jvector.version>4.0.0-rc.7</jvector.version>
+        <jvector.version>4.0.0-rc.8</jvector.version>
         <spatial4j.version>0.8</spatial4j.version>
         <jts-core.version>1.20.0</jts-core.version>
         <buildnumber-maven-plugin.version>3.3.0</buildnumber-maven-plugin.version>