Bumping versions

Author: spring-builds

docs/modules/ROOT/pages/index.adoc

@@ -1,6 +1,6 @@
 = Spring Cloud Train Reference Documentation
 
-:spring-boot-version: 3.5.0-M3
+:spring-boot-version: 3.5.0-RC1
 
 Spring Cloud provides tools for developers to quickly build some of
 the common patterns in distributed systems (e.g. configuration