dockerfiles/Dockerfile-runbook in runbook-1.0.0 vs dockerfiles/Dockerfile-runbook in runbook-1.1.0

@@ -1,5 +1,5 @@
-FROM ruby:2.5
+FROM ruby:3.0
 RUN apt-get update -qq && apt-get install -y build-essential tmux
 
 RUN mkdir /runbook
 WORKDIR /runbook