remove Debian 10 buster from tests and documentation

Support for Debian 10 Buster was dropped in PR#2352
#2352

Author: sebix

.github/workflows/ansible-tests.yml

@@ -33,4 +33,4 @@ jobs:
         path: ./src/intelmq-vagrant
 
     - name: Run ansible tests
-      run: podman run -e CI=${CI} -v ${GITHUB_WORKSPACE}/src:/src docker.io/debian:buster-slim /src/intelmq/.github/workflows/scripts/ansible.sh
+      run: podman run -e CI=${CI} -v ${GITHUB_WORKSPACE}/src:/src docker.io/debian:bullseye-slim /src/intelmq/.github/workflows/scripts/ansible.sh

.github/workflows/debian-package.yml

@@ -23,7 +23,7 @@ jobs:
     name: Build Debian packages
     strategy:
       matrix:
-        codename: ['buster', 'bullseye']
+        codename: ['bullseye', 'bookworm']
 
     steps:
     - name: Checkout repository

.github/workflows/scripts/debian-package.sh

@@ -10,7 +10,7 @@ set -x
 set -e
 
 # A list of known Debian releases
-knowncodenames=("stretch" "buster" "bullseye" "stable" "testing")
+knowncodenames=("bullseye" "bookworm" "stable" "testing")
 
 # We want exactly one argument: the name of the release
 if (( $# != 1 ))

docs/user/installation.rst

@@ -30,7 +30,7 @@ The following instructions assume the following requirements. Python versions >=
 
 Supported and recommended operating systems are:
 
-* Debian 10 Buster, Debian 11 Bullseye, Debian 12 Bookworm
+* Debian Debian 11 Bullseye, Debian 12 Bookworm
 * openSUSE Tumbleweed, Leap 15.5
 * Ubuntu: 20.04 Focal, 22.04 Jammy
 * For the Docker-installation: Docker Engine: 18.x and higher