feat: rename aliases to registryAliases (#15877)

docs/usage/configuration-options.md

lib/config/migrations/migrations-service.ts

lib/config/options/index.ts

lib/config/validation.spec.ts

lib/config/validation.ts

lib/modules/manager/helm-requirements/extract.spec.ts

lib/modules/manager/helm-requirements/extract.ts

lib/modules/manager/helm-requirements/index.ts

lib/modules/manager/helm-requirements/readme.md

lib/modules/manager/helmfile/extract.spec.ts

lib/modules/manager/helmfile/extract.ts

lib/modules/manager/helmfile/index.ts

lib/modules/manager/helmfile/readme.md

...dules/manager/helmv3/__snapshots__/artifacts.spec.ts.snap

lib/modules/manager/helmv3/artifacts.spec.ts

lib/modules/manager/helmv3/artifacts.ts

lib/modules/manager/helmv3/extract.spec.ts

lib/modules/manager/helmv3/extract.ts

lib/modules/manager/helmv3/index.ts

lib/modules/manager/helmv3/readme.md