Fix another envvar and a ruby package dep problem

Author: philwhineray

.github/workflows/publish.yml

@@ -38,7 +38,7 @@ jobs:
             || steps.extract.outputs.branch == 'tmp' }}
         run: >
            echo "Not publishing '${{steps.extract.outputs.branch}}'";
-           echo "##[set-output name=skip;]true"
+           echo "skip=true" >> $GITHUB_OUTPUT
         id: check
       - uses: actions/checkout@v4
       - run: ./.github/workflows/setup.sh

.github/workflows/setup.sh

@@ -4,6 +4,6 @@ set -e
 set -x
 
 sudo apt install ruby pandoc
-sudo gem install cri -v 2.10.1
+sudo gem install cri
 sudo gem install nanoc --version 3.8.0
 sudo gem install pandoc-ruby nokogiri