docs: Upgrade guide for 1.13.0 (#4614)

docs/content/upgrade-guides/medusa-core/1-13-0.md

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+---
+description: 'Actions Required for v.1.13.0'
+sidebar_custom_props:
+  iconName: 'server-stack-solid'
+---
+
+# v1.13.0
+
+Version 1.13.0 of Medusa introduces database schema changes that require you run the migrations command.
+
+## Overview
+
+This release contains a migration that changes the relationship between Shipping Profile and Product to Many-to-Many.
+
+---
+
+## How to Update
+
+Run the following command in the root directory of your Medusa Backend:
+
+```bash npm2yarn
+npm install @medusajs/medusa@1.13.0
+```
+
+To avoid unexpected issues with dependencies, it is also recommended to update all other Medusa plugins or packages you have installed. 
+
+---
+
+## Actions Required
+
+### Run Migrations
+
+After updating your Medusa server and before running it, run the following command to run the latest migrations:
+
+```bash
+npx @medusajs/medusa-cli migrations run
+```