Merge branch 'ci/make_doc_link_checks_to_manual_v3.4.0.0' into 'release/v3.4.0.0'

ci: make check_doc_links job to manual (v3.4.0.0)

See merge request application/esp-at!1771

Author: xcguang

.gitlab/ci/post_deploy.yml

@@ -10,6 +10,7 @@ check_doc_links:
       - docs/_build/*/*/linkcheck/*.txt
     expire_in: 1 week
   allow_failure: true
+  when: manual
   script:
     - cd docs
     - pip install -r requirements.txt