message: codeowners: add ownership to some paths
diff: /docs/features/techdocs @backstage/techdocs-core
  /docs/features/search @backstage/techdocs-core
  /docs/assets/search @backstage/techdocs-core
  -/plugins/code-coverage @alde @nissayeva
  -/plugins/code-coverage-backend @alde @nissayeva
  +/plugins/code-coverage @backstage/reviewers @alde @nissayeva
  +/plugins/code-coverage-backend @backstage/reviewers @alde @nissayeva
  /plugins/cost-insights @backstage/silver-lining
  -/plugins/cloudbuild @trivago/ebarrios
  +/plugins/cloudbuild @backstage/reviewers @trivago/ebarrios
  /plugins/search @backstage/techdocs-core
  /plugins/search-* @backstage/techdocs-core
  /plugins/techdocs @backstage/techdocs-core
  /plugins/techdocs-backend @backstage/techdocs-core
  -/plugins/ilert @yacut
  +/plugins/ilert @backstage/reviewers @yacut
  /plugins/home @backstage/techdocs-core
  /packages/search-common @backstage/techdocs-core
  /packages/techdocs-common @backstage/techdocs-core
  -/.changeset/cost-insights-* @backstage/silver-lining
  +/.changeset/cost-insights-* @backstage/reviewers @backstage/silver-lining
  /.changeset/search-* @backstage/techdocs-core
  /.changeset/techdocs-* @backstage/techdocs-core
  