Restore previous month perspective

config/gitlab.yml.example

config/initializers/1_settings.rb

doc/api/graphql/reference/index.md

...ipts/analytics/devops_report/devops_adoption/constants.js

ee/app/finders/analytics/devops_adoption/snapshots_finder.rb

.../analytics/devops_adoption/enabled_namespaces_resolver.rb

...resolvers/analytics/devops_adoption/snapshots_resolver.rb

...types/analytics/devops_adoption/enabled_namespace_type.rb

ee/app/models/analytics/devops_adoption/snapshot.rb

...rkers/analytics/devops_adoption/create_snapshot_worker.rb

...inders/analytics/devops_adoption/snapshots_finder_spec.rb

...evops_adoption/components/devops_adoption_section_spec.js

ee/spec/models/analytics/devops_adoption/snapshot_spec.rb

...phql/analytics/devops_adoption/enabled_namespaces_spec.rb

.../analytics/devops_adoption/create_snapshot_worker_spec.rb

locale/gitlab.pot