Applied nexus to all docker references including docker image

.drone.yml

@@ -18,7 +18,7 @@ steps:
   # --- PACKAGE STAGE ---
   # We build the image locally first so we can scan it BEFORE pushing
   - name: docker-build
-    image: plugins/docker
+    image: nexus.khongisa.co.za/docker:latest
     settings:
       registry: nexus.khongisa.co.za
       repo: nexus.khongisa.co.za/webapitest
@@ -32,7 +32,7 @@ steps:
       # Set to false once you verify the scan passes, or see the step below
 
   - name: docker-push
-    image: plugins/docker
+    image: nexus.khongisa.co.za/docker:latest
     settings:
       registry: nexus.khongisa.co.za
       repo: nexus.khongisa.co.za/webapitest
@@ -55,7 +55,7 @@ steps:
 
   # --- DEPLOY STAGE ---
   - name: deploy-uat
-    image: appleboy/drone-ssh
+    image: nexus.khongisa.co.za/drone-ssh:latest
     settings:
       host: 
         from_secret: ssh_host