message: catalog-backend: add 'breaking' prefix to existing changeset
diff: '@backstage/plugin-catalog-backend': minor
  ---
  -Mark permission-related exports as alpha. This means that the exports below should now be imported from `@backstage/plugin-catalog-backend/alpha` instead of `@backstage/plugin-catalog-backend`.
  +**Breaking**: Mark permission-related exports as alpha. This means that the exports below should now be imported from `@backstage/plugin-catalog-backend/alpha` instead of `@backstage/plugin-catalog-backend`.
  - `catalogConditions`
  - `createCatalogPolicyDecision`
  