Auto-DevOps: respect deploy freezes

Deploy Freezes are a useful tool to make sure deployments to production
are blocked during a certain timeframe. This change makes sure Auto
DevOps also respects Deploy Freezes and does not start deploy jobs
during a deploy freeze.

Changelog: added

lib/gitlab/ci/templates/Jobs/Deploy.gitlab-ci.yml

@@ -96,6 +96,8 @@ canary:
     name: production
     url: http://$CI_PROJECT_PATH_SLUG.$KUBE_INGRESS_BASE_DOMAIN
   rules:
+    - if: '$CI_DEPLOY_FREEZE != null'
+      when: never
     - if: '$CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == ""'
       when: never
     - if: '$CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH'
@@ -125,6 +127,8 @@ canary:
 production:
   <<: *production_template
   rules:
+    - if: '$CI_DEPLOY_FREEZE != null'
+      when: never
     - if: '$CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == ""'
       when: never
     - if: '$STAGING_ENABLED'
@@ -141,6 +145,8 @@ production_manual:
   <<: *production_template
   allow_failure: false
   rules:
+    - if: '$CI_DEPLOY_FREEZE != null'
+      when: never
     - if: '$CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == ""'
       when: never
     - if: '$INCREMENTAL_ROLLOUT_ENABLED'
@@ -177,6 +183,8 @@ production_manual:
   resource_group: production
   allow_failure: true
   rules:
+    - if: '$CI_DEPLOY_FREEZE != null'
+      when: never
     - if: '$CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == ""'
       when: never
     - if: '$INCREMENTAL_ROLLOUT_MODE == "timed"'
@@ -190,6 +198,8 @@ production_manual:
 .timed_rollout_template: &timed_rollout_template
   <<: *rollout_template
   rules:
+    - if: '$CI_DEPLOY_FREEZE != null'
+      when: never
     - if: '$CI_KUBERNETES_ACTIVE == null || $CI_KUBERNETES_ACTIVE == ""'
       when: never
     - if: '$INCREMENTAL_ROLLOUT_MODE == "manual"'