cluster change requirements.txt to requirements_cluster.txt

Former-commit-id: cfe3d12a058c916a4ebf326eb44099edad0e5c2c

ci/jenkinsfile/cluster_dev_test.groovy

@@ -2,7 +2,7 @@ timeout(time: 10, unit: 'MINUTES') {
     try {
         dir ("${PROJECT_NAME}_test") {
             checkout([$class: 'GitSCM', branches: [[name: "${SEMVER}"]], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[credentialsId: "${params.GIT_USER}", url: "git@192.168.1.105:Test/milvus_test.git", name: 'origin', refspec: "+refs/heads/${SEMVER}:refs/remotes/origin/${SEMVER}"]]])
-            sh 'python3 -m pip install -r requirements.txt'
+            sh 'python3 -m pip install -r requirements_cluster.txt'
             sh "pytest . --alluredir=cluster_test_out --ip ${env.JOB_NAME}-${env.BUILD_NUMBER}-cluster-milvus-cluster-proxy.milvus-cluster.svc.cluster.local"
         }
     } catch (exc) {