build: update sbt-2.x to 2.0.0-RC2 #4391

Job	Run time
sbt 1 plugin scripted tests (ubuntu-latest)	3m 34s
sbt 1 plugin scripted tests (windows-latest)	4m 45s
Test on JDK 11 (ubuntu-latest)	2m 4s
sbt 2 plugin scripted tests	2m 59s
Test on JDK 11 (windows-latest)	3m 17s
Test Maven plugin	2m 40s
Test on JDK 21 (ubuntu-latest)	2m 7s
Test on JDK 21 (windows-latest)	3m 4s
Test formatting	46s
release	0s
	25m 16s

Provide feedback