Use withCredential closures in test-performance job

Change-Id: Ic0496c9a71984a0541e06622f96b9fd4eda9527a

Author: JonasScharpf

buildscripts/scripts/test-performance.groovy

@@ -56,25 +56,21 @@ void main() {
             mount_credentials: true,
             privileged: true,
         ) {
-            withCredentials([
-                string(
-                    credentialsId: 'JIRA_API_TOKEN_QA_ALERTS',
-                    variable: 'QA_JIRA_API_TOKEN'
-                ),
-            ]) {
-                withCredentialFileAtLocation(creds: [
+            test_jenkins_helper.execute_test([
+                name: make_target,
+                cmd: "make -C tests ${make_target}",
+                // output_file: "test-performance.txt",
+                container_name: "this-distro-container",
+
+                creds_files: [
                     [credentialsId: "QA_POSTGRES_KEY_FILE", location: "${checkout_dir}/QA_POSTGRES_KEY",],
                     [credentialsId: "QA_POSTGRES_CERT_FILE", location: "${checkout_dir}/QA_POSTGRES_CERT",],
                     [credentialsId: "QA_ROOT_CERT_FILE", location: "${checkout_dir}/QA_ROOT_CERT",],
-                ]) {
-                    test_jenkins_helper.execute_test([
-                        name: make_target,
-                        cmd: "make -C tests ${make_target}",
-                        // output_file: "test-performance.txt",
-                        container_name: "this-distro-container",
-                    ]);
-                }
-            }
+                ],
+                cred_env: [
+                    string(credentialsId: 'JIRA_API_TOKEN_QA_ALERTS', variable: 'QA_JIRA_API_TOKEN'),
+                ],
+            ]);
         }
     }