feat(types): promotion module uses big number (#6522)

what: 

- promotion modules (application method and campaign budget) uses big number fields instead of numeric fields
- refreshes the migrations to include new fields for big numbers
- adds a promotion_ prefix to promotion models
- uses `take: null` within the module to prevent the default pagination on performing actions within the module

.changeset/new-baboons-wash.md

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+---
+"@medusajs/types": patch
+---
+
+feat(types): promotion module uses big number