modified milvus install prefix directory path in ci/jenkins/jenkinsfile/package.groovy

Former-commit-id: d69cc6532be14b1ccd00258a824e8096ebbec6ed

ci/jenkins/jenkinsfile/package.groovy

 timeout(time: 5, unit: 'MINUTES') {
-    dir ("core") {
-        if (fileExists('milvus')) {
-            sh "tar -zcvf ./${PROJECT_NAME}-${PACKAGE_VERSION}.tar.gz ./milvus"
+    if (fileExists('/opt/milvus')) {
+        sh "tar -zcvf ./${PROJECT_NAME}-${PACKAGE_VERSION}.tar.gz -C /opt/ milvus"
         withCredentials([usernamePassword(credentialsId: "${params.JFROG_CREDENTIALS_ID}", usernameVariable: 'JFROG_USERNAME', passwordVariable: 'JFROG_PASSWORD')]) {
             def uploadStatus = sh(returnStatus: true, script: "curl -u${JFROG_USERNAME}:${JFROG_PASSWORD} -T ./${PROJECT_NAME}-${PACKAGE_VERSION}.tar.gz ${params.JFROG_ARTFACTORY_URL}/milvus/package/${PROJECT_NAME}-${PACKAGE_VERSION}.tar.gz")
             if (uploadStatus != 0) {
@@ -11,5 +10,4 @@ timeout(time: 5, unit: 'MINUTES') {
     } else {
         error("Milvus binary directory don't exists!")
     }
-    }
 }