Merge branch 'msj-create-knowledge-metadata' into 'master'

Fix doc metadata for Create:Knowledge

See merge request gitlab-org/gitlab!53041

doc/administration/wikis/index.md

 ---
 type: reference, howto
 stage: Create
-group: Knowledge
+group: Editor
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
 ---
 

doc/api/group_wikis.md

 ---
 stage: Create
-group: Knowledge
+group: Editor
 info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments"
 type: reference, api
 ---

doc/api/wikis.md

 ---
 stage: Create
-group: Knowledge
+group: Editor
 info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments"
 type: reference, api
 ---

doc/development/wikis.md

 ---
 type: reference, dev
 stage: Create
-group: Knowledge
+group: Editor
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
 description: "GitLab's development guidelines for Wikis"
 ---

doc/user/project/issues/design_management.md

 ---
-stage: Create
-group: Knowledge
+stage: Plan
+group: Product Planning
 info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments"
 ---
 

doc/user/project/wiki/index.md

 ---
 stage: Create
-group: Knowledge
+group: Editor
 info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments"
 type: reference, how-to
 ---