Disabled Proxy by default and added custom proxy option to jeninsfile

CT-Build/Alpine.yaml

@@ -7,7 +7,7 @@ source:
   same_as: 3.12
   keyserver: keys.openpgp.org
 #InitDownloadREPO
-  url: http://192.168.200.11/alpine/
+  url: http://dl-4.alpinelinux.org/alpine/
   keys:
   # 0482D84022F52DF1C4E7CD43293ACD0907D9495A
   - |-
@@ -581,8 +581,8 @@ packages:
   - name: /etc/apk/repositories
     url: |-
       #StartREPOS
-      http://192.168.200.11/alpine/v{{ image.release }}/main
-      http://192.168.200.11/alpine/v{{ image.release }}/community
+      http://dl-4.alpinelinux.org/alpine/v{{ image.release }}/main
+      http://dl-4.alpinelinux.org/alpine/v{{ image.release }}/community
       #EndREPOS
       {% if image.variant == "ddns" %}@TestingEdge http://dl-4.alpinelinux.org/alpine/edge/testing{% endif %}
       {% if image.variant == "vouchproxy" %}@CommunityEdge http://dl-4.alpinelinux.org/alpine/edge/community{% endif %}