feat(utils): add campaign + promotion create / update (#6077)

* chore: add campaign + promotion operations

* chore: update type

* chore: added validation for campaign_id and campaign

* chore: added update promotions for campaigns

* chore: update campaign on promotion

* chore: fix lint

* chore: add test to remove promotions

.changeset/lazy-shoes-kiss.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/types": patch
+---
+
+feat(types): add campaign + promotion operations