feat(config): rename `azureAutoApprove` to `autoApprove` (#21576)

docs/usage/configuration-options.md

lib/config/migrations/migrations-service.ts

lib/config/options/index.ts

lib/modules/platform/azure/index.spec.ts

lib/modules/platform/azure/index.ts

lib/modules/platform/types.ts

lib/workers/repository/update/pr/index.ts