Set etcd log level to debug in e2e test (#6974)

Signed-off-by: quicksilver <zhifeng.zhang@zilliz.com>

build/ci/jenkins/pod/krte.yaml

@@ -22,12 +22,12 @@ spec:
     args: ["cat"]
     resources:
       limits:
-        cpu: "8"
-        memory: 14Gi
+        cpu: "6"
+        memory: 12Gi
         ephemeral-storage: "30Gi"
       requests:
-        cpu: "4"
-        memory: 12Gi
+        cpu: "3"
+        memory: 10Gi
         ephemeral-storage: "30Gi"
     volumeMounts:
     - mountPath: /docker-graph
@@ -44,14 +44,17 @@ spec:
       subPath: docker-volume
   - name: etcd
     image: quay.io/coreos/etcd:v3.4.13
+    env:
+    - name: ETCD_LOG_LEVEL
+      value: debug
     command:
     - etcd
     - -advertise-client-urls=http://127.0.0.1:2379
     - -listen-client-urls=http://0.0.0.0:2379
     resources:
       limits:
-        cpu: "1"
-        memory: "1Gi"
+        cpu: "2"
+        memory: "4Gi"
     ports:
     - containerPort: 2379
       name: client