update to bullseye

.gitlab-ci.yml

 default:
-  image: debian-python-build:v2
+  image: debian-build-python:bullseye
 
 # Is performed before the scripts in the stages step
 before_script:
@@ -16,12 +16,12 @@ before_script:
 
 # Defines stages which are to be executed
 stages:
-  - build_buster
+  - build_bullseye
   - upload_to_repo
 
-# Stage "build_buster"
-build_buster:
-  stage: build_buster
+# Stage "build_bullseye"
+build_bullseye:
+  stage: build_bullseye
   script:
     - apt update
     - apt install -y python3-stdeb python-all

debian/changelog

+tempermonitor (2.1.0) bullseye; urgency=medium
+
+  * upgrade to bullseye
+
+ -- Michael Loipführer <ml@stusta.de>  Fri, 12 Nov 2021 18:40:18 +0200
+
 tempermonitor (2.0.6) buster; urgency=medium
 
   * fix missing module