Add changelog for 3.3.5-RC3

Author: WojciechMazur

changelogs/3.3.5-RC3.md

@@ -0,0 +1,13 @@
+# Backported fixes
+
+- Fix synchronization of `-java-output-versions` with JVM backend [#22403](https://github.com/scala/scala3/pull/22403)
+
+# Contributors
+
+Thank you to all theq contributors who made this release possible 🎉
+
+According to `git shortlog -sn --no-merges 3.3.5-RC2..3.3.5-RC3` these are:
+
+```
+     3  Wojciech Mazur
+```