Bump jetty-servlets from 9.2.16.v20160414 to 9.4.41.v20210516

Bumps [jetty-servlets](https://github.com/eclipse/jetty.project) from 9.2.16.v20160414 to 9.4.41.v20210516.
- [Release notes](https://github.com/eclipse/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.2.16.v20160414...jetty-9.4.41.v20210516)

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

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

pom.xml

@@ -136,7 +136,7 @@
     <derby.version>10.12.1.1</derby.version>
     <parquet.version>1.8.2</parquet.version>
     <hive.parquet.version>1.6.0</hive.parquet.version>
-    <jetty.version>9.2.16.v20160414</jetty.version>
+    <jetty.version>9.4.41.v20210516</jetty.version>
     <javaxservlet.version>3.1.0</javaxservlet.version>
     <chill.version>0.8.0</chill.version>
     <ivy.version>2.4.0</ivy.version>