Update gradle.properties to 2.1.0-RC
diff --git a/gradle.properties b/gradle.properties
index f8102ce..415c149 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 # Copied from kotlinc
 org.gradle.jvmargs=-Duser.country=US -Dkotlin.daemon.jvm.options=-Xmx4096m -Dfile.encoding=UTF-8
 
-kotlinBaseVersion=2.1.0-Beta2
+kotlinBaseVersion=2.1.0-RC
 agpBaseVersion=8.7.0
 intellijVersion=233.13135.128
 junitVersion=4.13.1
@@ -24,4 +24,4 @@
 
 # Build or runtime dependencies of this project
 buildKotlinVersion=2.0.20
-buildKspVersion=2.0.20-1.0.25
\ No newline at end of file
+buildKspVersion=2.0.20-1.0.25