[PR #10279/7e66fb05 backport][stable-11] CI: Add yamllint for YAML files, plugin/module docs, and YAML in extra docs (#10317)

CI: Add yamllint for YAML files, plugin/module docs, and YAML in extra docs (#10279)

* Add yamllint to CI.

* Fix more YAML booleans.

(cherry picked from commit 7e66fb052e)

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/integration/targets/jenkins_credential/tasks/main.yml

@@ -13,7 +13,7 @@
     jenkins_user: "{{ jenkins_username }}"
     jenkins_password: "{{ jenkins_password }}"
     type: "token"
-  no_log: yes
+  no_log: true
   register: token_result
 
 - name: Assert token and tokenUuid are returned