Support IntelliJ IDEA 2024.1

[Yuyangbo]

I recently upgraded Idea to Build #IU-241.14494.240, where Ion plugin is not supported yet.

Looking forward for supporting this new version.

[popematt]

Thanks for bringing this to our attention. We will look into it.

[nirosys]

2.6.0 has been released to support 2024.1. Thank you again for bringing this to our attention!