Update milvus_build.groovy

Former-commit-id: f65a76f9c5f040ab4c42d44eb9ccb60671cd7176

ci/jenkinsfile/milvus_build.groovy

@@ -3,7 +3,7 @@ container('milvus-build-env') {
         gitlabCommitStatus(name: 'Build Engine') {
             dir ("milvus_engine") {
                 try {
-                    def knowhere_build_dir = "${env.WORKSPACE}/milvus_engine/cpp/thirdparty/knowhere/cmake_build"
+                    def knowhere_build_dir = "${env.WORKSPACE}/milvus_engine/cpp/src/core/cmake_build"
 
                     checkout([$class: 'GitSCM', branches: [[name: "${SEMVER}"]], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'SubmoduleOption',disableSubmodules: false,parentCredentials: true,recursiveSubmodules: true,reference: '',trackingSubmodules: false]], submoduleCfg: [], userRemoteConfigs: [[credentialsId: "${params.GIT_USER}", url: "git@192.168.1.105:megasearch/milvus.git", name: 'origin', refspec: "+refs/heads/${SEMVER}:refs/remotes/origin/${SEMVER}"]]])