🐛 Bug Report: Update Relationship endpoint is inconsistent

### 👟 Reproduction steps The URI for the update relationship attribute is inconsistent with other Update Attribute URI's ### 👍 Expected behavior It should end with `.../relationship/key` ### 👎 Actual Behavior ends with `.../key/relationship` which is different to all other update attribute endpoints ### 🎲 Appwrite version Appwrite Cloud ### 💻 Operating system Windows ### 🧱 Your Environment _No response_ ### 👀 Have you spent some time to check if this issue has been raised before? - [x] I checked and didn't find similar issue ### 🏢 Have you read the Code of Conduct? - [x] I have read the [Code of Conduct](https://github.com/appwrite/.github/blob/main/CODE_OF_CONDUCT.md)