chore(deps): bump jetty.version from 11.0.20 to 11.0.21

Bumps `jetty.version` from 11.0.20 to 11.0.21.

Updates `org.eclipse.jetty:jetty-client` from 11.0.20 to 11.0.21

Updates `org.eclipse.jetty.http2:http2-http-client-transport` from 11.0.20 to 11.0.21

Updates `org.eclipse.jetty.websocket:websocket-jetty-client` from 11.0.20 to 11.0.21

Updates `org.eclipse.jetty:jetty-server` from 11.0.20 to 11.0.21

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.jetty.http2:http2-http-client-transport
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.jetty.websocket:websocket-jetty-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.jetty:jetty-server
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -96,7 +96,7 @@
     <okio.version>1.17.6</okio.version>
     <okio.bundle.version>1.15.0_1</okio.bundle.version>
     <jackson.version>2.17.1</jackson.version>
-    <jetty.version>11.0.20</jetty.version>
+    <jetty.version>11.0.21</jetty.version>
     <maven-core.version>3.9.6</maven-core.version>
     <maven-plugin-annotations.version>3.13.0</maven-plugin-annotations.version>
     <vertx.version>4.5.7</vertx.version>