Upgrade jetty to 9.4.33.v20201020 (#8413)

Jetty versions 9.4.32.v20200930 and earlier have a security vulnerability, so upgraded to the latest stable version.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27216
1 file changed
tree: 40574db27be11dccd621f6195139292d51ada6f4
  1. distribution/
  2. docker/
  3. tests/