Add jkaniuk to clusterloader2 OWNERS.
Add jkaniuk to clusterloader2 OWNERS.

shyamjvs/perf-tests,shyamjvs/perf-tests,kubernetes/perf-tests,kubernetes/perf-tests,kubernetes/perf-tests,shyamjvs/perf-tests,kubernetes/perf-tests,shyamjvs/perf-tests,kubernetes/perf-tests,shyamjvs/perf-tests