Merge branch 'doc-pipeline-history-export' into 'master'

Add pipeline history to exported project content documentation

See merge request gitlab-org/gitlab!26644

doc/user/project/settings/import_export.md

@@ -77,6 +77,7 @@ The following items will be exported:
 - Design Management files and data **(PREMIUM)**
 - LFS objects
 - Issue boards
+- Pipelines history
 
 The following items will NOT be exported: