feat: bump version to 0.9.0 (#576)

bumps version to 0.9.0

Author: Amaneusz

gradle.properties

@@ -14,4 +14,4 @@ kotlin.mpp.enableCInteropCommonization=true
 kotlin.native.ignoreDisabledTargets=true
 
 group=io.modelcontextprotocol
-version=0.8.3
+version=0.9.0