Release 0.4.1 to fix features on docs.rs page

[Jefffrey]

See #129

Do a minor release so datafusion feature will show on docs.rs especially because we reference it in the docs:

datafusion-orc/src/lib.rs

Lines 49 to 50 in be8a685

	//! See the [`datafusion`] module for information on how to integrate with
	//! [Apache DataFusion](https://datafusion.apache.org/).

[Jefffrey]

Thanks @Xuanwo for pointing out the docs.rs build features config

[WenyXu]

Thanks!

[Xuanwo]

Thanks @Xuanwo for pointing out the docs.rs build features config

Thank you for working on this!