ca-certificates also in bullseye image

Dockerfile

@@ -9,27 +9,29 @@ ARG RELEASETOOL_URL="https://home.hottis.de/gitlab/wolutator/gitlabreleaseupload
 
 
 RUN \
-  apt-get update && \
+  apt update && \
-  apt-get install -y make && \
+  apt upgrade -y && \
-  apt-get install -y openssh-client && \
+  apt install -y ca-certificates && \
-  apt-get install -y git && \
+  apt install -y make && \
-  apt-get install -y python3 && \
+  apt install -y openssh-client && \
+  apt install -y git && \
+  apt install -y python3 && \
   update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1 && \
-  apt-get install -y python3-requests && \
+  apt install -y python3-requests && \
-  apt-get install -y python3-pycodestyle && \
+  apt install -y python3-pycodestyle && \
-  apt-get install -y python3-yaml && \
+  apt install -y python3-yaml && \
-  apt-get install -y python3-pip && \
+  apt install -y python3-pip && \
-  apt-get install -y python3-xmltodict && \
+  apt install -y python3-xmltodict && \
-  apt-get install -y gpg && \
+  apt install -y gpg && \
-  apt-get install -y apt-transport-https && \
+  apt install -y apt-transport-https && \
-  apt-get install -y wget && \
+  apt install -y wget && \
-  apt-get install -y curl && \
+  apt install -y curl && \
-  apt-get install -y unzip && \
+  apt install -y unzip && \
-  apt-get install -y zip && \
+  apt install -y zip && \
-  apt-get install -y vim.tiny && \
+  apt install -y vim.tiny && \
-  apt-get install -y p7zip-full && \
+  apt install -y p7zip-full && \
-  apt-get install -y procps && \
+  apt install -y procps && \
-  apt-get install -y doxygen && \
+  apt install -y doxygen && \
   rm -rf /var/lib/apt/lists/* && \
   cd /tmp && \
   wget $RELEASETOOL_URL && \