Ktlint 0.38.0 breaks indentation checking

[zach-klippenstein]

Ktlint 0.38.0 removed support for configuring continuation indentation separate from non-continuation indentation via .editorconfig files. Since our code style uses an indent of 2 spaces with a continuation indent of 4 spaces, ktlint no longer accepts our code. Tracked in pinterest/ktlint#816.

Until this is fixed, I've just disabled ktlint's indentation checking entirely so we can start using kotlin 1.4.