Kagglehub

* Fix permission issue in `model_upload` and add integration tests ([69](https://github.com/Kaggle/kagglehub/pull/69))
* Make specifying a license optional in `model_upload` ([62](https://github.com/Kaggle/kagglehub/pull/62))
* Improve logging ([68](https://github.com/Kaggle/kagglehub/pull/68), [#71](https://github.com/Kaggle/kagglehub/pull/71))
* Add resumable upload ([55](https://github.com/Kaggle/kagglehub/pull/55))

* Prevent log message from being printed twice in some environment ([57](https://github.com/Kaggle/kagglehub/pull/57))
* Add Colab model resolver ([53](https://github.com/Kaggle/kagglehub/pull/53))
* Add `kagglehub.model_upload(...)` ([43](https://github.com/Kaggle/kagglehub/pull/43), [#51](https://github.com/Kaggle/kagglehub/pull/51), [#52](https://github.com/Kaggle/kagglehub/pull/52))
* Add `kagglehub` user agent to Kaggle API V1 calls ([50](https://github.com/Kaggle/kagglehub/pull/50))
* Add `force_download` option to `kagglehub.model_download()` ([44](https://github.com/Kaggle/kagglehub/pull/44))

* Improve error messages for `KaggleCacheResolver` ([40](https://github.com/Kaggle/kagglehub/pull/40))

* Improve error messages for Kaggle API calls ([38](https://github.com/Kaggle/kagglehub/pull/38))
* Perform integrity check after file download ([37](https://github.com/Kaggle/kagglehub/pull/37))

* Fixed notebook environment detection logic ([36](https://github.com/Kaggle/kagglehub/pull/36))

* Fixed login credential validation ([33](https://github.com/Kaggle/kagglehub/pull/33), [#34](https://github.com/Kaggle/kagglehub/pull/34))