Bumped to use Alpine Linux 3.13.0

Dockerfile

@@ -1,5 +1,5 @@
 # Base on latest (edge) alpine image
-FROM harbor.ervine.dev/library/x86_64/alpine/alpine:3.12
+FROM harbor.ervine.dev/library/x86_64/alpine/alpine:3.13
 
 MAINTAINER “Jonathan Ervine” <docker@ervine.org>
 

Jenkinsfile

@@ -27,12 +27,11 @@ spec:
     stage('Build with Kaniko') {
       git url: 'ssh://git@git.ervine.org/jonny/x86_64-alpine-znc.git', credentialsId: 'jenkins-to-git'
       container('kaniko') {
-        sh '/kaniko/executor -f `pwd`/Dockerfile -c `pwd` --cache=true --destination=harbor.ervine.dev/library/x86_64/alpine/znc:3.12'
+        sh '/kaniko/executor -f `pwd`/Dockerfile -c `pwd` --cache=true --destination=harbor.ervine.dev/public/x86_64/alpine/znc:3.13'
       }
     }
+    stage("notify") {
+      hangoutsNotify message: "ZNC on Alpine has built",token: "A2ET831pVslqXTqAx6ycu573r",threadByJob: false
+    }
   }
 }
-
-stage("notify") {
-  hangoutsNotify message: "ZNC on Alpine has built",token: "A2ET831pVslqXTqAx6ycu573r",threadByJob: false
-}