build(deps): bump jetty-server from 9.4.44.v20210927 to 9.4.51.v20230217

Bumps [jetty-server](https://github.com/eclipse/jetty.project) from 9.4.44.v20210927 to 9.4.51.v20230217.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.44.v20210927...jetty-9.4.51.v20230217)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-server
  dependency-type: direct:production
...

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

pom.xml

@@ -67,7 +67,7 @@
         <version.aspectj>1.9.9.1</version.aspectj>
         <version.smc>6.6.0</version.smc>
         <version.xerces>2.12.0</version.xerces>
-        <version.jetty>9.4.44.v20210927</version.jetty>
+        <version.jetty>9.4.51.v20230217</version.jetty>
         <version.xrootd4j>4.5.6</version.xrootd4j>
         <version.jersey>2.28</version.jersey>
         <version.dcache-view>2.0.2</version.dcache-view>