Update ubuntu Docker tag to v26

Author: renovate[bot]

Dockerfile

@@ -47,7 +47,7 @@ CMD [ "while true; do sleep 30; done;" ]
 
 
 # The runtime stage copies the built venv into a runtime container
-FROM ubuntu:noble AS runtime
+FROM ubuntu:resolute AS runtime
 
 # Add apt-get system dependecies for runtime here if needed
 RUN apt-get update && apt-get install -y --no-install-recommends \