Increase nightly ci ephemeral-storage

[LoveEachDay]

Originally the ephemeral-storage for nightly-ci krte pod is 50Gi. The pod is get evicted because of storage usage exceeded the quota.

Sep 06 11:45:43 test-worker6 kubelet[1877]: I0906 11:45:43.963190    1877 eviction_manager.go:578] eviction manager: pod milvus-e2e-test-kind-nightly-546tr-cmn0v_kube-ops(1d81845d-0eaf-11ec-ba94-1c1b0d568bc0) is evicted successfully
Sep 06 11:45:43 test-worker6 kubelet[1877]: I0906 11:45:43.963213    1877 eviction_manager.go:191] eviction manager: pods milvus-e2e-test-kind-nightly-546tr-cmn0v_kube-ops(1d81845d-0eaf-11ec-ba94-1c1b0d568bc0) evicted, waiting for pod to be cleaned up

Increase the ephemeral-storage to resolve the pod the eviction.
Resolves: #7494

Signed-off-by: Edward Zeng jie.zeng@zilliz.com

/cc @zwd1208
/cc @yanliang567

[zwd1208]

/lgtm

[yanliang567]

/approve

[sre-ci-robot]

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