Add Endpoint for Editing Developer Application Names

## Summary

Developer application names should be editable, we should add a way to modify a developer application name. This could possibly be done with a generic `patch` endpoint for `/developer_application`. This endpoint will only be able to modify the name, in the future we may want to add additional fields that can be edited here.

在 codebase 中查找现有的 developer applications endpoints，可能在类似 `routes/developer_applications.py` 的文件中。理解 developer applications 的数据模型，可能使用 Prisma。创建一个位于 `/developer_application` 的 PATCH endpoint，接受 name 字段并更新记录。确保正确的 validation 和 authorization。使用现有 test suite 测试该 endpoint。

由索引模型根据 Issue 内容生成。