Merge pull request #15720 from backstage/rugvip/refactory

backend-app-api: switch factory functions to be defined with options as a top-level callback

.changeset/rich-bags-call.md

@@ -0,0 +1,8 @@
+---
+'@backstage/plugin-catalog-backend-module-incremental-ingestion': patch
+'@backstage/plugin-scaffolder-backend': patch
+'@backstage/backend-app-api': patch
+'@backstage/plugin-app-backend': patch
+---
+
+Internal refactor to match new options pattern in the experimental backend system.

.changeset/slow-pumas-tap.md

@@ -0,0 +1,5 @@
+---
+'@backstage/backend-plugin-api': minor
+---
+
+Updated all factory function creators to accept options as a top-level callback rather than extra parameter to the main factory function.