Update base to Debian Bullseye

Signed-off-by: J0WI <[email protected]>

translations/Dockerfile

@@ -1,10 +1,10 @@
-FROM ubuntu:20.04
+FROM debian:bullseye-slim
 
 MAINTAINER Morris Jobke <[email protected]>
 
 # Install python
 RUN apt-get update -q && \
-    DEBIAN_FRONTEND=noninteractive apt-get install -q -y --no-install-recommends \
+    apt-get install -q -y --no-install-recommends \
         gawk \
         gettext \
         git \
@@ -17,7 +17,7 @@ RUN apt-get update -q && \
         php7.4-json \
         php7.4-xml \
         qttools5-dev-tools \
-    && apt-get clean
+    && rm -rf /var/lib/apt/lists/*
 
 RUN update-ca-certificates