corrects syntax

build-signal.jenkins

@@ -99,6 +99,7 @@ pipeline {
         stage ("Build Signal") {
             steps {
                 container ("node-18") {
+                    script {
                         writeFile(file: workspace + "/test-chamber-13.lan.root.crt", text: functions.getCurrentRootCA())
                         sh """
                             git config --global --add safe.directory '*'
@@ -120,9 +121,11 @@ pipeline {
                     }
                 }
             }
+        }
 
         stage ('Push Artifacts') {
             steps {
+                script {
                     functions.pushArtifact(
                         repoCreds: "nexus-generic-upload-bot",
                         fileName: outputFile,
@@ -132,4 +135,5 @@ pipeline {
                 }
             }
         }
+    }
 }