Update versions in Dockerfile

Author: alco

packages/sync-service/Dockerfile

@@ -1,6 +1,6 @@
-ARG ELIXIR_VERSION=1.19.1
-ARG OTP_VERSION=28.1.1
-ARG DEBIAN_VERSION=bookworm-20251020-slim
+ARG ELIXIR_VERSION=1.20.0-rc.0
+ARG OTP_VERSION=28.3
+ARG DEBIAN_VERSION=bookworm-20251229-slim
 
 ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
 ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"