add retry(5) to checkout stage - gitea git-upload-pack drops connections intermittently

platform/Jenkinsfile

@@ -11,9 +11,9 @@ pipeline {
         skipDefaultCheckout()
     }
 
-    stages {
    stage('Checkout') {
             steps {
+                retry(5) {
                     checkout([
                         $class: 'GitSCM',
                         branches: scm.branches,
@@ -23,11 +23,12 @@ pipeline {
                             shallow: true,
                             depth: 1,
                             noTags: true,
-                        timeout: 20
+                            timeout: 30
                         ]]
                     ])
                 }
             }
+        }
 
         stage('Build Docker Image') {
             steps {