Improve assembling no_proxy string

Author: darmach

etc/kayobe/ansible/deployment/deploy-github-runner.yml

@@ -11,7 +11,7 @@
         custom_env: |
           http_proxy={{ http_proxy | default('') }}
           https_proxy={{ https_proxy | default('') }}
-          no_proxy=localhost,127.0.0.1,127.0.0.2,{{ no_proxy | default('') | join(',') }}
+          no_proxy={{ (['localhost', '127.0.0.1', '127.0.0.2'] + (no_proxy | default([]))) | join(',') }}
       when: >
         http_proxy is defined or
         https_proxy is defined or