Skip serial tests in ci-kubernetes-local-e2e
Skip serial tests in ci-kubernetes-local-e2e

There are some more tests that fail because local-up-cluster does not
have 2 minimum nodes. So let's skip all Serial tests.

https://testgrid.k8s.io/conformance-all#local-up-cluster,%20master%20(dev)

Signed-off-by: Davanum Srinivas <36003aec7ba325a16727bc9a176c12d2776a8ce4@gmail.com>

monopole/test-infra,monopole/test-infra,dims/test-infra,BenTheElder/test-infra,kubernetes/test-infra,monopole/test-infra,dims/test-infra,dims/test-infra,jessfraz/test-infra,michelle192837/test-infra,michelle192837/test-infra,BenTheElder/test-infra,fejta/test-infra,michelle192837/test-infra,fejta/test-infra,fejta/test-infra,jessfraz/test-infra,jessfraz/test-infra,fejta/test-infra,michelle192837/test-infra,cblecker/test-infra,cblecker/test-infra,dims/test-infra,cblecker/test-infra,michelle192837/test-infra,jessfraz/test-infra,kubernetes/test-infra,kubernetes/test-infra,dims/test-infra,cblecker/test-infra,cjwagner/test-infra,cjwagner/test-infra,monopole/test-infra,cblecker/test-infra,cjwagner/test-infra,cblecker/test-infra,kubernetes/test-infra,pwittrock/test-infra,cjwagner/test-infra,pwittrock/test-infra,pwittrock/test-infra,fejta/test-infra,monopole/test-infra,kubernetes/test-infra,BenTheElder/test-infra,cjwagner/test-infra,jessfraz/test-infra,BenTheElder/test-infra,kubernetes/test-infra,pwittrock/test-infra,jessfraz/test-infra,BenTheElder/test-infra,cjwagner/test-infra,monopole/test-infra,BenTheElder/test-infra,michelle192837/test-infra,pwittrock/test-infra,fejta/test-infra,dims/test-infra