Release 1.1.7 broken our Android build.

Updating to 1.1.7 broke our release build for our Android app. This appears to involve R8 + `kotlinx-datetime` which was added in this commit: https://github.com/allegro/json-logic-kmp/pull/120/commits/9f6027089ab3b049c1abaa0b8e8d6437e80e2a8f.

It looks like `kotlinx-datetime` uses `kotlinx.serialization` and `kotlinx.serialization` requires some specific proguard rules to work. See https://github.com/Kotlin/kotlinx.serialization#android.

The easiest way to reproduce this is to create a new Android app. Ensure Android Gradle Plugin in 8 or higher. Add `json-logic-kmp` v1.1.7 and then do a release build.