🐛 Bug Report: 500 error if you don't specify an entrypoint when creating a function manually

### 👟 Reproduction steps Upload the function gz package, click on the redeployment of the function several times, and then delete the function version. It will prompt that it cannot be deleted, and there will be an error when deleting. The function ID cannot be found. Then directly delete the function, and later create a new function that cannot be created. It will prompt the server with an error of 500. ### 👍 Expected behavior It should be possible to delete or create new functions normally ### 👎 Actual Behavior Error creating function ### 🎲 Appwrite version Version 1.4.x ### 💻 Operating system Linux ### 🧱 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)