build: update kotlinc to 2.0.0 #26

Job	Run time
Compile templates and cache kotlinc output	1m 34s
FreeBSD Cross	4m 15s
Linux Cross (arm32)	5m 41s
Linux (x64)	6m 52s
Linux Cross (arm64)	5m 41s
macOS (x64)	11m 49s
Windows (x86)	3m 39s
macOS (arm64)	3m 19s
Linux Cross (ppc64le)	5m 17s
Windows (x64)	5m 58s
Linux Cross (riscv64)	5m 10s
Windows (arm64)	4m 30s
	1h 3m 45s

Provide feedback