deb: update to golang bullseye

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

deb/Dockerfile

@@ -4,7 +4,7 @@ ARG GO_VERSION=1.20.5
 ARG DISTRO=ubuntu
 ARG SUITE=focal
 
-FROM golang:${GO_VERSION}-buster AS golang
+FROM golang:${GO_VERSION}-bullseye AS golang
 
 FROM ${DISTRO}:${SUITE}