change ruby version

.github/workflows/publish-gem.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.7.8'
+          ruby-version: "3.2"
       - name: Build gem
         run: |
           gem build github-pages.gemspec

.ruby-version

@@ -1 +1 @@
-2.7.8
+3.2

Dockerfile

@@ -1,4 +1,4 @@
-ARG RUBY_VERSION=2.7.8
+ARG RUBY_VERSION=3.2
 FROM ruby:$RUBY_VERSION
 
 RUN apt-get update \
@@ -9,7 +9,7 @@ RUN apt-get update \
     nodejs
 
 # final version for rubygems-update to supoprt ruby 2.7, consider removing this after upgraded to ruby 3.0
-RUN gem update --system 3.4.22
+RUN gem update --system
 
 COPY .git /src/gh/pages-gem/.git
 COPY Gemfile* /src/gh/pages-gem/

Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM ruby:2.7.8-alpine
+FROM ruby:3.2-alpine
 
 RUN apk update && apk add --no-cache \
   git

script/cibuild-docker

@@ -3,7 +3,7 @@
 set -ex
 
 # Set the ruby version in the Action definition matrix.
-: "${RUBY_VERSION:="2.7.8"}"
+: "${RUBY_VERSION:="3.2"}"
 
 docker build --build-arg "RUBY_VERSION=$RUBY_VERSION" -t github-pages .
 docker run --rm --workdir /src/gh/pages-gem github-pages script/cibuild