Update zuul config

Reviewed-by: gtema <artem.goncharov@gmail.com>
Co-authored-by: Goncharov, Artem <artem.goncharov@t-systems.com>
Co-committed-by: Goncharov, Artem <artem.goncharov@t-systems.com>

zuul.yaml

@@ -1,4 +1,11 @@
----
+- job:
+    name: build-otc-mrs-operation-guide
+    parent: otc-tox-docs
+    description: Build operation-guide document using tox
+    files:
+    - ^doc/component-operation-guide/source/.*
+    vars:
+      tox_envlist: operation-guide
 - project:
     merge-mode: squash-merge
     default-branch: main
@@ -6,3 +13,7 @@
     - helpcenter-base-jobs
     - api-ref-hc-int-jobs
     - umn-hc-int-jobs
+    check:
+      # Separate documents are rendered in check, while published through regular otc-tox-docs job part of the basic template
+      jobs:
+      - build-otc-mrs-operation-guide