[fea] Topology Agent Liveness Probe 추가

:Why/What:
- kubernetes_info 체크용 livenessProbe 설정 추가
- 미사용 환경변수 삭제
- 기본 로그 레벨 수정  DEBUG -> INFO

:Tasks:
[CLOUD-20862] 리더 선출로직 개선
<https://app.clickup.com/t/25540965/CLOUD-20862>

roles/cmoa_install/files/05-imxc/templates/topology-agent.yaml

@@ -113,12 +113,16 @@ spec:
                    fieldPath: metadata.namespace
             - name: DATAGATE
               value: datagate:50051
-            - name: LOG_RNAME_USE
-              value: "false"
             - name: LOG_LEVEL
-              value: "DEBUG"
+              value: "INFO"
             - name: CLOUDMOA_SETTING_PATH
               value: /home/cloudmoa/setting/
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 18081
+            initialDelaySeconds: 30
+            timeoutSeconds: 5
           resources:
             requests:
               memory: "125Mi"