Update build.sbt

Author: pjfanning

build.sbt

@@ -24,8 +24,8 @@ ThisBuild / publishTo := {
 bomFormat := "xml"
 
 resolvers += Resolver.sonatypeCentralSnapshots
-ThisBuild / version := "3.0.0-SNAPSHOT"
-val jacksonVersion = "3.0.0-rc8"
+ThisBuild / version := "3.0.0-rc9-SNAPSHOT"
+val jacksonVersion = "3.0.0-rc9-SNAPSHOT"
 
 autoAPIMappings := true