message: chore: make changesets unowned
diff: * @backstage/maintainers
  yarn.lock @backstage/maintainers @backstage-service
  */yarn.lock @backstage/maintainers @backstage-service
  -/.changeset @backstage/owners
  +/.changeset
  /cypress/src/integration/plugins/techdocs.spec.ts @backstage/techdocs-core
  /docs/assets/search @backstage/techdocs-core
  /docs/features/search @backstage/techdocs-core
  