Bump jetty from 6.0.2 to 6.1.17 in /xtrace/server#13

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dependabot/maven/xtrace/server/org.mortbay.jetty-jetty-6.1.17brownsys/tracing-framework:dependabot/maven/xtrace/server/org.mortbay.jetty-jetty-6.1.17Copy head branch name to clipboard