Fabric Language Kotlin

• Fix release (modmuss50)
• Migrate to groovy buildscript, add changelog generation, add auto github/modrinth publishing. (modmuss50)
• Update to Kotlin 1.7.0 and bump coroutines and serialization (#73) (Jakob K)
• Merge pull request #72 (Jakob K)
• Add atomicfu library (#71) (Jakob K)

Update kotlin

First modrith release.